# US 11,116,001 B2 · Techniques and apparatuses for sub-physical resource block resource allocation for machine type communication

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- Number: US 11,116,001 B2
- Document ID: US11116001B2
- Status: Granted
- Kind: B2
- Application number: 16/603,736
- Filed: 2018-05-09
- Published: 2021-04-01
- Granted: 2021-09-07
- Earliest claimed: 2017-05-16
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated; Chao Wei; Kapil Bhattad; Alberto Rico Alvarino
- Inventors: Chao Wei; Kapil Bhattad; Alberto Rico Alvarino; Hao Xu
- Web page: https://patentgrep.com/patent/US11116001B2

## CPC

- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC]
- H04L 5/0012: {Hopping in multicarrier systems}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method, a user equipment, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a grant identifying an uplink resource allocation of less than one physical resource block (PRB), wherein the grant identifies a particular PRB in which the uplink resource allocation is included and at least a group of subcarriers allocated for the apparatus; and transmit uplink data using the uplink resource allocation. Numerous other aspects are described.

## Claims

### Claim 1

A method of wireless communication, comprising:
receiving, by a user equipment (UE) capable of using a sub-physical resource block (PRB) resource allocation and a resource allocation of one or more PRBs, a grant identifying an uplink resource allocation of less than one PRB,
wherein the grant identifies a particular PRB in which the uplink resource allocation is included and at least a group of subcarriers allocated for the UE,
wherein the uplink resource allocation is associated with a transport block,
wherein the uplink resource allocation maps the transport block to at least one resource unit that includes a first number of subcarriers and a second number of subframes, and
wherein the grant indicates a number of resource units to which the transport block is to be mapped; and
transmitting uplink data, by the UE, using the uplink resource allocation.

### Claim 2 (depends on 1)

The method of claim 1, wherein the UE includes a Category M UE, a Category M1 UE, or a Category M2 UE.

### Claim 3 (depends on 1)

The method of claim 1, wherein the uplink resource allocation further identifies a narrowband in which the particular PRB is included.

### Claim 4 (depends on 1)

The method of claim 1, wherein the particular PRB is selected from a predefined group of PRBs that includes fewer than all PRBs of a narrowband on which the UE is configured to communicate.

### Claim 5 (depends on 4)

The method of claim 4, wherein a configuration of the predefined group of PRBs is indicated using radio resource control signaling.

### Claim 6 (depends on 1)

The method of claim 1, wherein the particular PRB is selected based at least in part on the particular PRB being not included in a narrowband.

### Claim 7 (depends on 1)

The method of claim 1, wherein the particular PRB is selected based at least in part on the particular PRB being included in a guard band.

### Claim 8 (depends on 1)

The method of claim 1, wherein the uplink resource allocation is identified based at least in part on a joint coding with a repetition level associated with the grant.

### Claim 9 (depends on 1)

The method of claim 1, wherein a transport block size of the transport block is determined based at least in part on the number of resource units.

### Claim 10 (depends on 9)

The method of claim 9, wherein a modulation order of the transport block is overwritten with quadrature phase shift keying or binary phase shift keying when a determined modulation order of the transport block is greater than 2.

### Claim 11 (depends on 1)

The method of claim 1, wherein the group of subcarriers is selected from multiple non-overlapping groups of subcarriers of the particular PRB.

### Claim 12 (depends on 1)

The method of claim 1, wherein the UE is further configured to receive a second grant of at least one PRB, and wherein a number of PRBs of the second grant is based at least in part on a maximum transmission bandwidth of the UE.

### Claim 13 (depends on 12)

The method of claim 12, wherein the maximum transmission bandwidth is 1.4 megahertz and the second grant is associated with from one to six PRBs.

### Claim 14 (depends on 12)

The method of claim 12, wherein the maximum transmission bandwidth is 5 megahertz and the second grant is associated with from one to 24 PRBs.

### Claim 15

A method of wireless communication, comprising:
receiving, by a user equipment (UE), a grant identifying an uplink resource allocation of less than one physical resource block (PRB),
wherein the grant identifies a number of subframes or resource units to which a transport block, associated with the uplink resource allocation, is to be mapped; and
determining, by the UE, a frequency hopping technique based at least in part on the number of subframes or resource units,
wherein the frequency hopping technique is within a narrowband that contains the uplink resource allocation, and
wherein at least one of:
the UE is configured to deactivate the frequency hopping technique when the grant identifies the uplink resource allocation of less than one PRB,
the UE is configured to configure the frequency hopping technique based at least in part on a coverage extension mode, a frequency hopping interval, and the number of subframes or resource units when the grant identifies the uplink resource allocation of less than one PRB,
the UE is configured to perform the frequency hopping technique within one or more predefined PRBs when the grant identifies the uplink resource allocation of less than one PRB, or
the UE is configured to perform the frequency hopping technique within a particular PRB, the frequency hopping technique is based at least in part on a cyclic approach within the particular PRB.

### Claim 16 (depends on 15)

The method of claim 15, wherein the UE is configured to deactivate the frequency hopping technique when the grant identifies the uplink resource allocation of less than one PRB.

### Claim 17 (depends on 15)

The method of claim 15, wherein the UE is configured to configure the frequency hopping technique based at least in part on the coverage extension mode, the frequency hopping interval, and the number of subframes or resource units when the grant identifies the uplink resource allocation of less than one PRB.

### Claim 18 (depends on 17)

The method of claim 17, wherein the UE is configured to perform the frequency hopping technique when the frequency hopping interval matches the number of subframes or resource units associated with the uplink resource allocation.

### Claim 19 (depends on 15)

The method of claim 15, wherein the UE is configured to perform the frequency hopping technique within the one or more predefined PRBs when the grant identifies the uplink resource allocation of less than one PRB.

### Claim 20 (depends on 15)

The method of claim 15, wherein the UE is configured to perform the frequency hopping technique within the particular PRB, and wherein the frequency hopping technique is based at least in part on the cyclic approach within the particular PRB.

### Claim 21

A method of wireless communication, comprising:
receiving, by a user equipment (UE), a grant identifying an uplink resource allocation of less than one physical resource block (PRB); and
performing, by the UE, a retuning operation based at least in part on the grant identifying an uplink resource allocation of less than one PRB,
wherein the retuning operation is performed according to a retuning configuration corresponding to a system bandwidth capability of the UE, and
wherein at least one of:
the UE is configured to perform the retuning operation when a narrowband on which the UE communicates changes,
the UE is configured to perform the retuning operation when a PRB on which the UE communicates changes,
the UE is configured to puncture a last one or more symbols of a subframe based at least in part on performing the retuning operation, or
the UE is configured to rate match a first one or more symbols of the subframe based at least in part on performing the retuning operation.

### Claim 22 (depends on 21)

The method of claim 21, wherein the UE is configured to perform the retuning operation when the narrowband on which the UE communicates changes.

### Claim 23 (depends on 21)

The method of claim 21, wherein the UE is configured to perform the retuning operation when the PRB on which the UE communicates changes.

### Claim 24 (depends on 21)

The method of claim 21, wherein the UE is configured to puncture the last one or more symbols of the subframe based at least in part on performing the retuning operation.

### Claim 25 (depends on 21)

The method of claim 21, wherein the UE is configured to rate match the first one or more symbols of the subframe based at least in part on performing the retuning operation.

### Claim 26

A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
receive a grant identifying an uplink resource allocation of less than one physical resource block (PRB),
wherein the grant identifies a particular PRB in which the uplink resource allocation is included and at least a group of subcarriers is allocated for the UE,
wherein the uplink resource allocation is associated with a transport block,
wherein the uplink resource allocation maps the transport block to at least one resource unit that includes a first number of subcarriers and a second number of subframes, and
wherein the grant indicates a number of resource units to which the transport block is to be mapped; and
transmit uplink data using the uplink resource allocation.

### Claim 27 (depends on 26)

The UE of claim 26, wherein the uplink resource allocation further identifies a narrowband in which the particular PRB is included.

### Claim 28 (depends on 26)

The UE of claim 26, wherein the particular PRB is selected from a predefined group of PRBs that includes fewer than all PRBs of a narrowband on which the UE is configured to communicate.

### Claim 29 (depends on 28)

The UE of claim 28, wherein a configuration of the predefined group of PRBs is indicated using radio resource control signaling.

### Claim 30 (depends on 26)

The UE of claim 26, wherein a transport block size of the transport block is determined based at least in part on the number of resource units.
