Granted Patent B2

US 12,745,238 · App. 17/566,052 · Granted Sep 22, 2026

Inventors: Nazanin Rastegardoost (McLean, VA); Yunjung Yi (Vienna, VA); Esmael Hejazi Dinan (McLean, VA)

Assignee: Ofinno, LLC

H04W72/1268H04L5/0048H04W74/0833H04W74/0836H04W74/0838

Abstract

Claims (110)

1 . A method comprising:

receiving, by a wireless device having reduced processing capabilities, at least one system information block (SIB) indicating:

common random access resources for:

first wireless devices with the reduced processing capabilities; and

second wireless devices without the reduced processing capabilities;

a demodulation reference signal (DMRS) configuration;

one or more repetition values for PUSCH repetition; and

one or more beta offset values for multiplexing one or more uplink control information (UCI) in a PUSCH transmission, wherein:

the first wireless devices are associated with a first beta offset value, of the one or more beta offset values; and

the second wireless devices are not associated with the first beta offset value;

transmitting a preamble using the common random access resources;

receiving a response, to the preamble, indicating:

a physical uplink shared channel (PUSCH) resource;

a first DMRS resource for the first wireless devices; and

a second DMRS resource for the second wireless devices;

selecting, based on the common random access resources and based on the wireless device having the reduced processing capabilities, the first DMRS resource from the first DMRS resource and the second DMRS resource; and

transmitting uplink data via the PUSCH resource based on:

the selected first DMRS resource;

the DMRS configuration;

the one or more repetition values; and

the first beta offset value.

2 . The method of claim 1 , wherein the uplink data is transmitted to a base station, and wherein the transmission based on the selected first DMRS resource indicates to the base station that the wireless device is one of the first wireless devices with the reduced processing capabilities.

3 . The method of claim 1 , wherein the reduced processing capabilities comprise having at least one of:

a bandwidth of the wireless device being less than a bandwidth threshold;

a quantity of antennas of the wireless device being less than an antenna quantity threshold;

a number of downlink multiple-input multiple-output (MIMO) layers of the wireless device being less than a downlink MIMO layers threshold;

a modulation order supportable by the wireless device being less than a modulation order threshold; or

a duplex operation comprising non-simultaneous transmission and reception in separate frequency bands.

4 . The method of claim 1 , further comprising receiving a downlink control information (DCI) scrambled by a random access radio network temporary identifier (RA-RNTI), wherein the DCI indicates a random access response (RAR) comprising the response.

5 . The method of claim 1 , further comprising receiving a downlink control information (DCI) scrambled by a message-B radio network temporary identifier (MsgB-RNTI), wherein the DCI indicates a fallback random access response (fallback RAR) comprising the response.

6 . The method of claim 1 , wherein:

the first DMRS resource comprises a first DMRS initializing sequence; and

the second DMRS resource comprises a second DMRS initializing sequence.

7 . The method of claim 1 , wherein:

the first DMRS resource comprises a first DMRS pattern; and

the second DMRS resource comprises a second DMRS pattern.

8 . The method of claim 1 , wherein:

the first DMRS resource comprises one or more first symbols of the PUSCH resource for a DMRS; and

the second DMRS resource comprises one or more second symbols of the PUSCH resource for the DMRS.

9 . The method of claim 1 , wherein:

the first DMRS resource comprises a first uplink DMRS scrambling index; and

the second DMRS resource comprises a second uplink DMRS scrambling index.

10 . The method of claim 1 , wherein:

the first DMRS resource comprises a first antenna port for a DMRS; and

the second DMRS resource comprises a second antenna port for the DMRS.

11 . A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device, having reduced processing capabilities, to:

receive at least one system information block (SIB) indicating:

common random access resources for:

first wireless devices with the reduced processing capabilities; and

second wireless devices without the reduced processing capabilities;

a demodulation reference signal (DMRS) configuration;

one or more repetition values for PUSCH repetition; and

one or more beta offset values for multiplexing one or more uplink control information (UCIs) in a PUSCH transmission, wherein:

the first wireless devices are associated with a first beta offset value, of the one or more beta offset values; and

the second wireless devices are not associated with the first beta offset value;

transmit a preamble using the common random access resources;

receive a response, to the preamble, indicating:

a physical uplink shared channel (PUSCH) resource;

a first DMRS resource for a PUSCH transmission of the first wireless devices; and

a second DMRS resource for a PUSCH transmission of the second wireless devices;

select, based on the common random access resources and based on the wireless device having the reduced processing capabilities, the first DMRS resource from the first DMRS resource and the second DMRS resource; and

transmit uplink data via the PUSCH resource based on:

the selected first DMRS resource;

the DMRS configuration;

the one or more repetition values; and

the first beta offset value.

12 . The wireless device of claim 11 , wherein the uplink data is transmitted to a base station, and wherein the transmission based on the selected first DMRS resource indicates to the base station that the wireless device is one of the first wireless devices with the reduced processing capabilities.

13 . The wireless device of claim 11 , wherein the reduced processing capabilities comprise having at least one of:

a bandwidth of the wireless device being less than a bandwidth threshold;

a quantity of antennas of the wireless device being less than an antenna quantity threshold;

a number of downlink multiple-input multiple-output (MIMO) layers of the wireless device being less than a downlink MIMO layers threshold;

a modulation order supportable by the wireless device being less than a modulation order threshold; or

a duplex operation comprising non-simultaneous transmission and reception in separate frequency bands.

14 . The wireless device of claim 11 , wherein the instructions further cause the wireless device to receive a downlink control information (DCI) scrambled by a random access radio network temporary identifier (RA-RNTI), wherein the DCI indicates a random access response (RAR) comprising the response.

15 . The wireless device of claim 11 , wherein the instructions further cause the wireless device to receive a downlink control information (DCI) scrambled by a message-B radio network temporary identifier (MsgB-RNTI), wherein the DCI indicates a fallback random access response (fallback RAR) comprising the response.

16 . The wireless device of claim 11 , wherein:

the first DMRS resource comprises a first DMRS initializing sequence; and

the second DMRS resource comprises a second DMRS initializing sequence.

17 . The wireless device of claim 11 , wherein:

the first DMRS resource comprises a first DMRS pattern; and

the second DMRS resource comprises a second DMRS pattern.

18 . The wireless device of claim 11 , wherein:

the first DMRS resource comprises one or more first symbols of the PUSCH resource for a DMRS; and

the second DMRS resource comprises one or more second symbols of the PUSCH resource for the DMRS.

19 . The wireless device of claim 11 , wherein:

the first DMRS resource comprises a first uplink DMRS scrambling index; and

the second DMRS resource comprises a second uplink DMRS scrambling index.

20 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device having reduced processing capabilities, cause the wireless device to:

receive at least one system information block (SIB) indicating:

common random access resources for:

first wireless devices with the reduced processing capabilities; and

second wireless devices without the reduced processing capabilities;

a demodulation reference signal (DMRS) configuration;

one or more repetition values for PUSCH repetition; and

one or more beta offset values for multiplexing one or more uplink control information (UCI) in a PUSCH transmission, wherein:

the first wireless devices are associated with a first beta offset value, of the one or more beta offset values; and

the second wireless devices are not associated with the first beta offset value;

transmit a preamble using the common random access resources;

receive a response, to the preamble, indicating:

a physical uplink shared channel (PUSCH) resource;

a first DMRS resource for the first wireless devices; and

a second DMRS resource for the second wireless devices;

select, based on the common random access resources and based on the wireless device having the reduced processing capabilities, the first DMRS resource from the first DMRS resource and the second DMRS resource; and

transmit uplink data via the PUSCH resource based on:

the selected first DMRS resource;

the DMRS configuration;

the one or more repetition values; and

the first beta offset value.

Assignments (1)

Continuity (2)

References Cited (50)