Apparatus, methods, and computer program products providing partial MIMO reception and decoding
In a first aspect, there are received m transmitted signals of a multiple input/multiple output transmission comprising n transmitted signals corresponding to n streams of n different polarizations, where n is a positive integer greater than one, and m is an integer less than n. The m received signals are decoded to obtain information for the corresponding streams. Apparatus and computer programs to implement the invention are also detailed.
1 . A method comprising:
receiving m transmitted signals of a multiple input/multiple output transmission comprising n transmitted signals corresponding to n streams of n different polarizations, where n is a positive integer greater than one and m is an integer less than n; and
decoding the m received signals to obtain information for the corresponding streams.
2 . The method according to claim 1 , wherein streams of the multiple input/multiple output transmission are independently coded and cross-polarized.
3 . The method according to claim 1 , wherein the decoding comprises considering a portion of the multiple input/multiple output transmission apart from the received m transmitted signals as interference with respect to the received m transmitted signals.
4 . The method according to claim 3 , wherein the portion of the multiple input/multiple output transmission apart from the received m transmitted signals is sent to a multi-stage inter-antenna interference cancellation receiver wherein cancellation is based on reliable channel estimates from transmit antennas and symbol constellations.
5 . The method according to claim 2 , wherein the multiple input/multiple output transmission comprises a plurality of services which are separately coded and modulated, and a plurality of streams where each stream has a different signal power.
6 . The method according to claim 5 , further comprising utilizing common signaling to indicate a symbol constellation of all the plurality of services.
7 . The method according to claim 2 , wherein observed channels of the multiple input/multiple output transmission are substantially independent.
8 . The method according to claim 1 , wherein the receiving is by a receiver comprising a plurality of antennas, wherein the receiver is configured to receive the entirety of the multiple input/multiple output transmission.
9 . A memory readable by a processor, tangibly embodying a program of instructions that when executed by the processor result in operations comprising:
receiving m transmitted signals of a multiple input/multiple output transmission comprising n transmitted signals corresponding to n streams of n different polarizations, where n is a positive integer greater than one and m is an integer less than n; and
decoding the m received signals to obtain information for the corresponding streams.
10 . The memory as in claim 10 , wherein the multiple input/multiple output transmission comprises a plurality of digital video broadcast services that are separately coded and modulated, and a plurality of streams where each stream has a different signal power.
11 . An apparatus comprising:
a receiver configured to receive m transmitted signals of a multiple input/multiple output comprising n transmitted signals corresponding to n streams of n different polarizations, where n is a positive integer greater than one and m is an integer less than n; and
a decoder configured to decode the m received signals to obtain information for the corresponding streams.
12 . The apparatus according to claim 11 , wherein the streams of the multiple input/multiple output transmission are independently coded and cross-polarized.
13 . The apparatus according to claim 11 , wherein the decoder is configured to consider a portion of the multiple input/multiple output transmission apart from the received m transmitted signals as interference with respect to the received m transmitted signals.
14 . The apparatus according to claim 13 , further comprising a multi-stage inter-antenna inference cancellation receiver to which the portion of the multiple input/multiple output transmission apart from the received m transmitted signals is sent, and in which cancellation is based on reliable channel estimates from transmit antennas and symbol constellations.
15 . The apparatus according to claim 12 , wherein the multiple input/multiple output transmission comprises a plurality of services which are separately coded and modulated, and a plurality of streams where each stream has a different signal power.
16 . The apparatus according to claim 15 , in which common signaling is utilized to indicate a symbol constellation of all the plurality of services.
17 . The apparatus according to claim 12 , wherein observed channels of the multiple input/multiple output transmission are substantially independent.
18 . The apparatus according to claim 11 , further comprising a receiver and a plurality of antennas which are configured to receive the entirety of the multiple input/multiple output transmission.
19 . An apparatus comprising a processor configured to:
receive m transmitted signals of a multiple input/multiple output transmission comprising n transmitted signals corresponding to n streams of n different polarizations, where n is a positive integer greater than one and m is an integer less than n; and
decode the m received signals to obtain information for the corresponding streams.
20 . The apparatus according to claim 19 , in which the streams of the multiple input/multiple output transmission are independently coded and cross-polarized.
21 . The apparatus according to claim 19 , wherein the m received signals are decoded by considering a portion of the multiple input/multiple output transmission apart from the received m transmitted signals as interference with respect to the received m transmitted signals.
22 . The method according to claim 2 , wherein the decoding comprises considering a portion of the multiple input/multiple output transmission apart from the received m transmitted signals as interference with respect to the received m transmitted signals.
23 . The method according to claim 22 , wherein the portion of the multiple input/multiple output transmission apart from the received m transmitted signals is sent to a multi-stage inter-antenna interference cancellation receiver wherein cancellation is based on reliable channel estimates from transmit antennas and symbol constellations.
24 . The method according to claim 2 , wherein the receiving is by a receiver comprising a plurality of antennas, wherein the receiver is configured to receive the entirety of the multiple input/multiple output transmission.
25 . The apparatus according to claim 12 , wherein the decoder is configured to consider a portion of the multiple input/multiple output transmission apart from the received m transmitted signals as interference with respect to the received m transmitted signals.
26 . The apparatus according to claim 25 , further comprising a multi-stage inter-antenna inference cancellation receiver to which the portion of the multiple input/multiple output transmission apart from the received m transmitted signals is sent, and in which cancellation is based on reliable channel estimates from transmit antennas and symbol constellations.
27 . The apparatus according to claim 12 , further comprising a receiver and a plurality of antennas which are configured to receive the entirety of the multiple input/multiple output transmission.
28 . The apparatus according to claim 20 , wherein the m received signals are decoded by considering a portion of the multiple input/multiple output transmission apart from the received m transmitted signals as interference with respect to the received m transmitted signals.