US 2020/0008127 A1Published application

Apparatus and method for relay selection

AssigneeNEC Corporation

InventorTaichi OHTSUJI

Life of this patent

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Abstract

A relay terminal (2) transmits selection assistance information to a remote terminal (1). The selection assistance information includes a first information element transmitted from a base station (3) and received by the relay terminal (2). The first information element indicates at least one of: (a) a frequency band of the base station (3); a system bandwidth; downlink transmission power; UL/DL configuration; the number of cells provided to the relay terminal; a type of a cell; a RAT or a communication scheme used between the base station (3) and the relay terminal (2); and a name or identifier of a mobile operator providing the base station. This is thus, for example, possible to contribute to improving appropriateness of a relay selection.

Claims22

Dependent claims

A radio terminal comprising:

a memory;
and
at least one processor coupled to the memory and configured to receive selection assistance information from each of one or more relay terminals and select at least one specific relay terminal suitable for the radio terminal from among the one or more relay terminals based on the selection assistance information, wherein
each specific relay terminal is configured to relay traffic between the radio terminal and a base station through a device-to-device (D2D) link between the specific relay terminal and the radio terminal and through a backhaul link between the specific relay terminal and the base station,
the selection assistance information includes a first information element transmitted from the base station and received by each relay terminal, and
the first information element indicates at least one of:
(a) a frequency band supported by the base station;
(b) a system bandwidth supported by the base station;
(c) downlink transmission power of the base station;
(d) an uplink/downlink configuration of each cell that the base station provides to each relay terminal;
(e) the number of cells that the base station provides to each relay terminal;
(f) a type of one or more cells that the base station provides to each relay terminal;
(g) a Radio Access Technology (RAT) or a communication scheme used between the base station and each relay terminal;
and
(h) a name or identifier of a mobile operator providing the base station.

12 more elements

A relay terminal comprising:

a memory;
and
at least one processor coupled to the memory and configured to:
transmit selection assistance information to the remote terminal;
and
relay traffic between the remote terminal and a base station through a device-to-device (D2D) link between the relay terminal and the remote terminal and through a backhaul link between the relay terminal and the base station, wherein
the selection assistance information includes a first information element transmitted from the base station and received by the relay terminal, and
the first information element indicates at least one of:
(a) a frequency band supported by the base station;
(b) a system bandwidth supported by the base station;
(c) downlink transmission power of the base station;
(d) an uplink/downlink configuration of each cell that the base station provides to the relay terminal;
(e) the number of cells that the base station provides to the relay terminal;
(f) a type of one or more cells that the base station provides to the relay terminal;
(g) a Radio Access Technology (RAT) or a communication scheme used between the base station and the relay terminal;
and
(h) a name or identifier of a mobile operator providing the base station.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/465,420Filed 27 Jun 2017
Priority: JP 2016-2385098 Dec 2016
Published: 2 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04W 40/22
Communication route or path selection, e.g. power-based or shortest path routing: using selective relaying for reaching a BTS [Base Transceiver…
H04L 1/0005
By switching between different modulation schemes: applied to payload information
H04W 4/70
Services specially adapted for wireless communication networks; Facilities therefor: services for machine-to-machine communication [M2M] or…
H04W 88/04
Terminal devices: adapted for relaying to or from another terminal or user

Family

US 11,122,493 B2Related patent
US 2020/0008127 A1This patent

From the US filing history. Foreign family members aren’t listed.

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