Abstract
An arrangement is disclosed where in a multi-carrier communication system the modulation scheme coding attributes training pilots and signal power may be adjusted to adapt to channel conditions in order to maximize the overall system capacity and spectral efficiency without wasting radio resources or compromising error probability performance etc.
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| 4G | 28/05/2018 | ISLD-201808-005 | GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD |
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| US2015139177A1 | 4G | 28/05/2018 | ISLD-201808-005 | GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD |
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Technologies
Resource configuration
Product
Use Cases
Wireless communication
Services
Claim
1-25. (canceled)
26. A link adaptation method by a base station serving a plurality of mobile stations in an Orthogonal Frequency Division Multiplexing (OFDM) communication system, the communication system utilizing a transmission structure with time slots in the time domain and frequency subchannels in the frequency domain, the method comprising:
transmitting a control message to a mobile station over a control channel, wherein:
the control message contains transmission parameters specific to the mobile station for a subsequent transmission of data by the base station over a frequency subchannel to the mobile station in a time slot; and
the mobile station-specific transmission parameters indicate a multiple-input multiple-output (MIMO) scheme and a corresponding subchannel configuration; and
transmitting a data packet to the mobile station over the frequency subchannel in accordance with the mobile station-specific transmission parameters.
27. The method in claim 26, wherein the mobile station-specific transmission parameters further indicate a training pilot pattern.
28. The method in claim 26, wherein the mobile station-specific transmission parameters further indicate power control information.
29. The method in claim 26, wherein the MIMO scheme is for improving transmission throughput based on a channel condition.
30. The method in claim 26, wherein the corresponding subchannel configuration is selected based on a channel condition.
31. The method in claim 30, wherein the subchannel configuration is characterized by localized subcarriers of a subchannel in the frequency domain.
32. The method in claim 30, wherein the subchannel configuration is characterized by distributed subcarriers of a subchannel in the frequency domain.
33. A base station serving a plurality of mobile stations in an Orthogonal Frequency Division Multiplexing (OFDM) communication system, the communication system utilizing a transmission structure with time slots in the time domain and frequency subchannels in the frequency domain, the base station comprising a transmitter configured to:
transmit a control message to a mobile station over a control channel, wherein:
the control message contains transmission parameters specific to the mobile station for a subsequent transmission of data by the base station over a frequency subchannel to the mobile station in a time slot; and
the mobile station-specific transmission parameters indicate a multiple-input multiple-output (MIMO) scheme and a corresponding subchannel configuration; and
transmit a data packet to the mobile station over the frequency subchannel in accordance with the mobile station-specific transmission parameters.
34. The base station in claim 33, further comprising a receiver configured to receive channel state information from the mobile station.
35. A link adaptation method by a mobile station served by a serving base station in an Orthogonal Frequency Division Multiplexing (OFDM) communication system, the communication system utilizing a transmission structure with time slots in the time domain and frequency subchannels in the frequency domain, the method comprising:
receiving a control message from the serving base station over a control channel, wherein:
the control message contains transmission parameters specific to the mobile station for a subsequent transmission by the serving base station over a frequency subchannel to the mobile station in a time slot; and
the mobile station-specific transmission parameters indicate a multiple-input multiple-output (MIMO) scheme and a corresponding subchannel configuration; and
receiving a data packet transmitted by the serving base station using the mobile station-specific transmission parameters over the frequency subchannel.
36. The method in claim 35, wherein the mobile station-specific transmission parameters further indicate a training pilot pattern.
37. The method in claim 35, wherein the mobile station-specific transmission parameters further indicate power control information.
38. The method in claim 35, wherein the MIMO scheme is for improving transmission throughput based on a channel condition.
39. The method in claim 35, wherein the corresponding subchannel configuration is selected based on a channel condition.
40. The method in claim 39, wherein the subchannel configuration is characterized by localized subcarriers of a subchannel in the frequency domain.
41. The method in claim 39, wherein the subchannel configuration is characterized by distributed subcarriers of a subchannel in the frequency domain.
42. A mobile station served by a serving base station in an Orthogonal Frequency Division Multiplexing (OFDM) communication system, the communication system utilizing a transmission structure with time slots in the time domain and frequency subchannels in the frequency domain, the mobile station comprising a receiver configured to:
receive a control message from the serving base station over a control channel, wherein:
the control message contains transmission parameters specific to the mobile station for a subsequent transmission by the serving base station over a frequency subchannel to the mobile station in a time slot; and
the mobile station-specific transmission parameters indicate a multiple-input multiple-output (MIMO) scheme and a corresponding subchannel configuration; and
receive a data packet transmitted by the serving base station using the mobile station-specific transmission parameters over the frequency subchannel.
43. The mobile station in claim 42, further comprising a transmitter configured to transmit channel state information to the serving base station.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.