# US 2021/0242984 A1 · Communications device

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- Number: US 2021/0242984 A1
- Document ID: US20210242984A1
- Status: Published application
- Kind: A1
- Application number: 17/240,035
- Filed: 2021-04-26
- Published: 2021-08-05
- Earliest claimed: 2014-01-31
- Assignees: Sony Group Corporation
- Applicants: Sony Group Corporation
- Inventors: Brian Alexander MARTIN; Matthew William WEBB
- Web page: https://patentgrep.com/patent/US20210242984A1

## CPC

- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 5/0032: {Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 72/04: Wireless resource allocation
- H04W 72/20: Control channels or signalling for resource management
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 76/14: Direct-mode setup
- 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 communications device including a transmitter transmitting data signals to a network element of a wireless communications system using shared resources of an uplink of a first wireless access interface included in the network element, a receiver receiving data signals from the network element using shared resources of a downlink of the first wireless access interface, allocations of the shared resources being made by the network element and the uplink of the first wireless access interface is within a first set of resources, and a controller controlling the transmitter and receiver to transmit/receive signals representing data to/from another communications device using a second wireless access interface within a second set of resources formed from resources of the first set of resources for preferable allocation for device-to-device communications by the network element, resources of the second wireless access interface being time divided into at least a data and control regions.

## Claims

### Claim 1

A communications device comprising
a transmitter for transmitting signals representing data to a network element of a wireless communications system using shared resources of an uplink of a first wireless access interface provided by the network element,
a receiver for receiving signals representing data from the network element using shared resources of a downlink of the first wireless access interface, wherein allocations of the shared resources are made by the network element and the uplink of the first wireless access interface is within a first set of resources, and
a controller for controlling the transmitter and the receiver to transmit and to receive signals representing data to and from another communications device using a second wireless access interface which is within a second set of resources, the second set of resources being formed from resources of the first set of resources for preferable allocation for device-to-device communications by the network element, and resources of the second wireless access interface are divided in time into at least a data region and a control region.

### Claim 2

A network element comprising
a transmitter for transmitting signals representing data to a communications device using shared resources of a downlink of a first wireless access interface provided by the network element,
a receiver for receiving signals representing data from the communications device using shared resources of an uplink of the first wireless access interface, wherein allocations of the shared resources are made by the network element and the uplink of the first wireless access interface is within a first set of resources, and
a controller for preferably allocating a second set of resources formed from the first set of resources for use by a second wireless access interface, the second wireless access interface being within the second set of resources and being used for device-to-device communications by the communications device.

### Claim 3 (depends on 2)

A network element as claimed in claim 2, wherein the first wireless access interface includes a control channel and the second set of resources for preferable allocation for use by the second wireless access interface is contiguous in frequency with the control channel.