Mobile communication device, network node and communication system for coordinated multipoint transmission comprising self-containment information of a channel-dependent attribute

An apparatus comprising:

• a computer readable medium, comprising program code;
• at least one processor configured, in response to execution of the program code, to cause the apparatus to perform at least the following:
• receive a value related to channel state information in reports for coordinated multipoint transmission over a communication channel;
• wherein one or more of the reports comprises one or more first information elements of the value and at least one of the reports comprises a second information element of the value, wherein the one or more first information elements comprise relative information of the channel state information and corresponding self-contained bits of the channel state information, and the second information element comprises absolute information of the channel state information;
• wherein the reports are self-contained allowing for recovery of at least part of the channel state information for each report;
• and
• wherein a coarse reconstruction of the value for controlling a coordinated multipoint transmission is based solely on the one or more first information elements from a self-contained report allowing reconstruction of current channel-dependent information and/or the channel state information in response to the second information element needed for complete reconstruction of the value not being received.

A method comprising:

• transmitting a value related to channel state information in reports for coordinated multipoint transmission over a communication channel;
• wherein one or more of the reports comprises one or more first information elements of the value and at least one of the reports comprises a second information element of the value, wherein the one or more first information elements comprise relative information of the channel state information and corresponding self-contained bits of the channel state information, and the second information element comprises absolute information of the channel state information;
• wherein the reports are self-contained allowing for recovery of at least part of the channel state information for each report;
• and
• wherein a coarse reconstruction of the value for controlling a coordinated multipoint transmission is based solely on the one or more first information elements from a self-contained report allowing reconstruction of current channel-dependent information and/or the channel state information in response to transmission of the second information element needed for complete reconstruction of the value being performed but there is a failure of reception of the second information element.

A method comprising:

• receiving a value related to channel state information in reports for coordinated multi-point transmission over a communication channel,
• wherein one or more of the reports comprises one or more first information elements of the value and at least one of the reports comprises a second information element of the value, wherein the one or more first information elements comprise relative information of the channel state information and corresponding self-contained bits of the channel state information, and the second information element comprises absolute information of the channel state information;
• wherein the reports are self-contained allowing for recovery of at least part of the channel state information for each report;
• and
• wherein a coarse reconstruction of the value for controlling a coordinated multipoint transmission is based solely on the one or more first information elements from a self-contained report allowing reconstruction of current channel-dependent information and/or the channel state information in response to the second information element needed for complete reconstruction not being received.