System and method using rate split scheme based on cooperation between receivers

• US 8,412,252 B2
• Filed: 07/02/2010
• Issued: 04/02/2013
• Est. Priority Date: 12/31/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Hyun Ho, Viswanath, Pramod, Shin, Chang Yong, Noh, Won Jong, Shin, Won-Jae
• Primary Examiner(s): Safaipour, Bobbak
• Application Number:
  US12/830,261
• Publication Number:
  US 20110159897A1
• Time in Patent Office: 1,005 Days
• Field of Search: 455/517, 455/522, 370/318
• US Class Current: 455/517
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/40 during macro-diversity or soft handoff
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames

Abstract

Each of a first transmitter and a second transmitter uses a rate split scheme. Each of the first transmitter and the second transmitter may transmit at least four sub-messages, and different transmission powers may be allocated to the at least four sub-messages. Also, each of receivers may cooperate with each other, may share sub-messages that act as interferences, and may extract desired messages using the shared sub-messages.

Claims

1. A communication method of a transmitter, the method comprising:

generating a transmission message comprising;

a 1-1-(i−

1)^th sub-message;

a 2-1-(i−

1)^th sub-message;

a 2-1-(i)^th sub-message; and

a 3-1-(i−

1)^th sub-message in a (i−

1)^th time slot;

allocating transmission powers A, B, C, and D [W], respectively, in the transmission message of the (i−

1)^th time slot, A, B, C, and D denoting real numbers and A>

B>

C>

D, to;

the 1-1-(i−

1)^th sub-message;

the 2-1-(i−

1)^th sub-message;

the 2-1-(i)^th sub-message; and

the 3-1-(i−

1)^th sub-message; and

generating a transmission message comprising the 2-1-(i)^th sub-message in a (i)^th time slot.

2. The method of claim 1, further comprising allocating a transmission power B to the 2-1-(i)^th sub-message in the transmission message in the (i)^th time slot.

3. The method of claim 1, further comprising determining the transmission powers A, B, C, and D based on information associated with an interference channel of a corresponding transmission/reception pair and information associated with an interference channel of an adjacent transmission/reception pair.

4. The method of claim 1, further comprising:

cooperating with the adjacent transmission/reception pair; and

collecting information associated with the interference channels.

5. The method of claim 1, wherein the allocating allocates the transmission powers A, B, C, and D, respectively, to enable a receiver of the adjacent transmission/reception pair to:

succeed in decoding of the 1-1-(i−

1)^th sub-message and the 2-1-(i−

1)^th sub-message from the transmission message in the (i−

1)^th time slot; and

fail in decoding of the 2-1-(1)^th sub-message and the 3-1-(i−

1)^th sub-message from the transmission message in the (i−

1)^th time slot.

6. The method of claim 5, wherein the allocating allocates the transmission powers A, B, C, and D, respectively, to enable a receiver corresponding to the transmitter to succeed in decoding of the 1-1-(i−

1)^th sub-message, the 2-1-(i−

1)^th sub-message, the 2-1-(1)^th sub-message, and the 3-1-(i−

1)^th sub-message from the transmission message in the (i−

1)^th time slot.

7. The method of claim 2, wherein the allocating allocates the transmission power B to the 2-1-(i)^th sub-message to enable a receiver of the adjacent transmission/reception pair to succeed in decoding of the 2-1-(1)^th sub-message from the transmission message in the (i)^th time slot.

8. A non-transitory computer-readable recording medium storing a program implementing the method of claim 1.