Relay communication system

Patent metadata

Field	Value
Publication number	US-10659141-B2
Application number	US-201916355005-A
Country	US
Kind code	B2
Filing date	Mar 15, 2019
Priority date	Jan 12, 2010
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A relay communications system is described in which a base station is able to support both Frequency diversity Relay Physical Downlink Control Channel (R-PDCCH) transmission and Frequency selective R-PDCCH transmission either within different cells, or within the same cell but not the same sub-frame or within the same cell and within the 5 same sub-frame.

First claim

The invention claimed is:

1. A communication device configured as a relay station, the communication device comprising:
a transceiver circuit; and
a processor configured to:
control the transceiver circuit to receive a first Relay Physical Downlink Control Channel (R-PDCCH) without being interleaved with a second R-PDCCH, or alternatively receive the first R-PDCCH interleaved in one or several PRBs with at least the second R-PDCCH; and
control the transceiver circuit to receive configuration information for the R-PDCCH identifying a subframe configuration of a subframe for a base station to relay node transmission, the base station to relay node transmission including first and second different multiplexing transmissions;

wherein the processor is further configured to control the transceiver circuit to receive:
first configuration data defining at least one first subframe configured in accordance with a first subframe configuration; and
second configuration data defining at least one second subframe configured in accordance with a second subframe configuration; and

wherein the first and the second configuration data are FDM multiplexed into a same subframe or TDM multiplexed into different subframes.

2. The communication device according to claim 1 , wherein the processor is further configured to determine, using higher layers, a set of Physical Resource Blocks (PRBs) for potential R-PDCCH reception.

3. The communication device according to claim 1 , wherein the first and the second different multiplexing transmission are Frequency diversity multiplexing transmission and Frequency selective multiplexing transmission, respectively.

4. A method in a communication device configured as a relay station, the method comprising:
receiving a first Relay Physical Downlink Control Channel (R-PDCCH) without being interleaved with a second R-PDCCH, or alternatively receiving the first R-PDCCH interleaved in one or several PRBs with at least the second R-PDCCH;
receiving configuration information for the R-PDCCH identifying a subframe configuration of a subframe for a base station to relay node transmission, the base station to relay node transmission including first and second different multiplexing transmissions; and
receiving:
first configuration data defining at least one first subframe configured in accordance with a first subframe configuration; and
second configuration data defining at least one second subframe configured in accordance with a second subframe configuration,

wherein the first and the second configuration data are arranged within a same subframe or either one of the first and the second configuration data is FDM multiplexed into the same subframe or TDM multiplexed into different subframes.

5. The method according to claim 4 , further comprising determining, using higher layers, a set of Physical Resource Blocks (PRBs) for potential R-PDCCH reception.

6. The method according to claim 4 , wherein the first and the second different multiplexing transmission are Frequency diversity multiplexing transmission and Frequency selective multiplexing transmission, respectively.

Assignees

• Awad Yassin Aden
• Maruta Yasushi
• Nec Corp

Inventors

• Awad Yassin Aden
• Maruta Yasushi

Classifications

• H04B7/15528 Primary

  Control of operation parameters of a relay station to exploit the physical medium · CPC title

• H04B7/12 Primary

  Frequency diversity · CPC title

• H04B7/208 Primary

  Frequency-division multiple access {[FDMA]} · CPC title