WIRELESS COMMUNICATION SYSTEM USING MULTIPLE TRANSMISSION AND RECEPTION POINTS

• US 20170134111A1
• Filed: 01/20/2017
• Published: 05/11/2017
• Est. Priority Date: 02/11/2011
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KO, Young-Jo, LEE, Hee-Soo, SEO, Bang-Won, AHN, Jae-Young, NOH, Tae-Gyun
• Granted Patent: US 10,292,169 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04J 11/0079 Acquisition of downlink reference signals, e.g. detection of cell-ID
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 16/24 Cell structures
• CPC Class Codes: H04W 16/32 Hierarchical cell structures
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

Disclosed is a wireless communication system using multiple transmission and reception points. In a wireless communication system having a first transmission and reception point and at least one second transmission and reception point belonging to the same cell, the first transmission and reception point has a wider transmission area than the at least one second transmission and reception point, and the first transmission and reception point and the at least one second transmission and reception point generate downlink transmission signals by using the same physical layer cell ID or virtual cell IDs allocated to each terminal, and then the terminals generate uplink transmission signals by using the allocated virtual cell IDs.

Claims

1-15. -15. (canceled)

16. A method of receiving control data from a transmitter, the method comprising:

receiving information indicating a virtual cell identity of the transmitter from the transmitter;

receiving first control data from the transmitter through a first control channel, wherein the first control data is scrambled; and

receiving second control data from the transmitter through a second control channel, wherein the second control data is scrambled based on the virtual cell identity of the transmitter, and the second control channel is different from the first control channel.