MASSIVE COOPERATIVE MULTIPOINT NETWORK OPERATION
Methods, systems and devices for massive cooperative multipoint network operation are described. One example method for wireless communication includes transmitting, by a network node serving a plurality of mobile devices in a surrounding area, channel condition information and scheduling information for one or more of the plurality of mobile devices to a network-side server, receiving, by the network node from the network-side server, control information for scheduling transmissions to or from each of the one or more of the plurality of mobile devices, and controlling, by the network node and based on the control information, a communication to or from the one or more of the plurality of mobile devices at a future time or a different frequency band or a different spatial direction.
1 . A system for wireless communication, comprising:
a network-side server; and
a plurality of network nodes,
wherein each of the plurality of network nodes is configured to serve a corresponding plurality of mobile devices in a surrounding area,
wherein at least one network node of the plurality of network nodes is configured to:
transmit, to the network-side server, channel condition information and scheduling information for one or more of the corresponding plurality of mobile devices,
receive, from the network-side server, control information for scheduling transmissions to or from each of the one or more of the corresponding plurality of mobile devices, and
control, based on the control information, a communication to or from the one or more of the corresponding plurality of mobile devices at a future time or a different frequency band or a different spatial direction.
2 . The system of claim 1 , wherein controlling the communication is further based on a prediction process for determining channel conditions at the future time or the different frequency band or the different spatial direction.
3 . The system of claim 1 , wherein the channel condition information comprises channel-coupling data between the at least one network node and the one or more of the corresponding plurality of mobile devices.
4 . The system of claim 3 , wherein the control information comprises one or more weighting coefficients, and wherein a derivation of the one or more weighting coefficients is based on the channel-coupling data.
5 . The system of claim 4 , wherein the derivation of the one or more weighting coefficients is further based on the scheduling information.
6 . The system of claim 4 , wherein the derivation of the one or more weighting coefficients comprises a zero-forcing operation.
7 . The system of claim 1 , wherein each of the plurality of network nodes and the network-side server are communicatively coupled to each other via a millimeter wavelength based communication protocol.
8 . The system of claim 1 , wherein each of the plurality of network nodes and the network-side server are communicatively coupled to each other via an optical fiber link.
9 . A network-side server apparatus, comprising:
a transceiver configured to receive, from a base station in a wireless system, (a) channel condition information comprising channel measurements performed on channels between the base station and a plurality of mobile devices served by the base station and (b) scheduling information for the plurality of mobile devices, wherein the channels between the base station and the plurality of mobile devices are configured to perform multi-layer communication using a multiple-input, multiple-output (MIMO) transmission scheme; and
a processor configured to generate, based on the channel condition information, control information for transmissions between the base station each of the plurality of mobile devices, wherein the control information includes information indicative of a mapping between the plurality of mobile devices and corresponding communication layers in the multi-layer communication,
wherein the transceiver is further configured to transmit, to the base station, the control information to enable the multi-layer communication between the base station and the plurality of mobile devices using the MIMO transmission scheme at a future time or a different frequency band or a different spatial direction.
10 . The network-side server apparatus of claim 9 , wherein the network-side server apparatus is further configured to operate as a base station that provides wireless connectivity to a number of wireless devices.
11 . The network-side server apparatus of claim 9 , wherein the transceiver is configured to operate in a millimeter wavelength band.
12 . The network-side server apparatus of claim 9 , wherein the transceiver is configured to operate on a wired transmission medium.
13 . The network-side server apparatus of claim 9 , wherein generating the control information is further based on the scheduling information.
14 . A method of wireless communication, comprising:
transmitting, by at least one network node of a plurality of network nodes to a network-side server, channel condition information and scheduling information for one or more of a plurality of mobile devices, wherein the plurality of mobile devices is being served by the at least one network node;
receiving, by the at least one network node from the network-side server, control information for scheduling transmissions to or from each of the one or more of the plurality of mobile devices; and
controlling, based on the control information, a communication to or from the one or more of the plurality of mobile devices at a future time or a different frequency band or a different spatial direction.
15 . The method of claim 14 , wherein the control information comprises one or more weighting coefficients, and wherein a derivation of the one or more weighting coefficients is based on the channel condition information and the scheduling information.
16 . The method of claim 15 , wherein the derivation of the one or more weighting coefficients comprises a zero-forcing operation.
17 . The method of claim 15 , wherein controlling the communication comprises:
multiplying each of the one or more weighting coefficients by a respective modulated symbol to generate a corresponding transmission symbol; and
configuring the corresponding transmission symbol for transmission at the future time or the different frequency band or the different spatial direction.
18 . The method of claim 14 , wherein controlling the communication is further based on a prediction process for determining channel conditions at the future time or the different frequency band or the different spatial direction.
19 . The method of claim 14 , wherein each of the plurality of network nodes and the network-side server are communicatively coupled to each other via a millimeter wavelength based communication protocol or an optical fiber link.
20 . The method of claim 14 , wherein the network-side server is configured to operate as a base station that provides wireless connectivity to a number of wireless devices.