COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND COMMUNICATION METHOD

• US 20160128052A1
• Filed: 01/12/2016
• Published: 05/05/2016
• Est. Priority Date: 07/04/2011
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: OUCHI, Wataru, SUZUKI, Shoichi, AIBA, Tatsushi, NAKASHIMA, Daiichiro
• Granted Patent: US 9,848,410 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04J 11/0053 using co-ordinated multipoint transmission/reception co-ordinated antenna or beam-forming aspects H04B7/022
• CPC Class Codes: H04L 27/14 Demodulator circuits; Receiver circuits
• CPC Class Codes: H04L 5/0012 Hopping in multicarrier systems for frequency hopping in spread spectrum systems H04B1/713
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

A communication system comprises at least a base station device and a terminal device. The terminal device transmits a demodulation reference signal associated with a physical channel, receives a configuration of comb of the demodulation reference signal, and transmits the demodulation reference signal mapped based on the configuration of comb. The base station device transmits a configuration of comb of a demodulation reference signal related to a physical channel.

Claims

1. A terminal device comprising:

a transmitter configured to transmit a demodulation reference signal associated with a physical channel; and

a receiver configured to receive a configuration of comb of the demodulation reference signal;

wherein the transmitter is configured to transmit the demodulation reference signal mapped based on the configuration of comb.

2. The terminal device according to claim 1, wherein

the transmitter is configured to transmit the demodulation reference signal based on an orthogonal cover code, wherein a pattern of the orthogonal cover code is expanded in a case that the terminal device is configured with the comb of the demodulation reference signal.

3. A base station device comprising:

a transmitter configured to transmit a configuration of comb of a demodulation reference signal related to a physical channel.

4. The base station device according to claim 3, wherein

the transmitter is configured to transmit a configuration of an orthogonal cover code expand based on the configuration of the comb.

5. A transmitting method in a terminal device comprising:

transmitting a demodulation reference signal associated with a physical channel; and

receiving a configuration of comb of the demodulation reference signal;

wherein the demodulation reference signal is mapped based on the configuration of comb.