METHOD AND APPARATUS FOR INTERFERENCE MITIGATION VIA SUCCESSIVE CANCELLATION IN HETEROGENEOUS NETWORKS
First Claim
Patent Images
1. A method comprising:
- obtaining, at a WTRU, demodulation information associated with a private part, a first common part and a second common part;
processing a received signal, according to the demodulation information, including at least the first common part, the second common part, and the private part; and
,transmitting a multipart hybrid automatic repeat request (HARQ) message indicating a combination of acknowledgements and/or non-acknowledgements (ACK/NACK) for the first common part, second common part, and private part.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques for inter-cell interference cancellation are disclosed. At each transmitter, the data (message) may split into two or more layers, (e.g., common and private parts), and may be encoded in different rates, allocated with different powers, possibly beamformed using different precoders, and transmitted through the same physical channels. The common part is to be decoded at both the intended and unintended users, while the private part is to be decoded at the intended user.
-
Citations
16 Claims
-
1. A method comprising:
-
obtaining, at a WTRU, demodulation information associated with a private part, a first common part and a second common part; processing a received signal, according to the demodulation information, including at least the first common part, the second common part, and the private part; and
,transmitting a multipart hybrid automatic repeat request (HARQ) message indicating a combination of acknowledgements and/or non-acknowledgements (ACK/NACK) for the first common part, second common part, and private part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method comprising:
-
obtaining at a first eNodeB a plurality of transmit spatial covariance matrices associated with a respective plurality of WTRUs, including receiving covariance information associated with at least one transmit spatial covariance matrix via an X2 interface from a second eNodeB; determining common and private message splitting rates based on the plurality of covariance matrices; determining common and private precoder weights based on the transmit spatial covariance matrices; and
,transmitting a common and a private message parts using the common and private message splitting rates, respectively, and the common and private precoder weights, respectively. - View Dependent Claims (10, 11)
-
-
12. An apparatus comprising:
-
a WTRU including a processor, configured to; obtain demodulation information associated with a private part, a first common part and a second common part; process a received signal, according to the demodulation information, including at least the first common part, the second common part, and the private part; and
,control a HARQ process and generate a multipart HARQ message indicating a combination of acknowledgements and/or non-acknowledgements (ACK/NACK) for the first common part, second common part, and private part; and
,a transceiver configured to transmit the multipart HARQ message. - View Dependent Claims (13, 14, 15, 16)
-
Specification