Method of designing a multiplexing structure for resource allocation to support legacy system
AssigneeLG Electronics Inc.
InventorsJin Soo Choi, Han Gyu Cho, Jong Young Han, Jae Hoon Chung
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Abstract
New multiplexing UL structures for supporting legacy system are provided. A 16m system of diversity mode can be multiplexed with 16e system in PUSC mode in FDM manner with the same tiles/permutation rules. A 16m system can be multiplexed with 16e system in AMC mode in FDM and/or TDM manner. The time length of multiplexed 16e PUSC packets and/or 16m packets can be extended to more than two sub-frames for UL coverage. A PRU for 16m system may consists of 16 sub-carriers by 6 OFDMA symbols, 18 sub-carriers by 6 OFDMA symbols, or 20 sub-carriers by 6 OFDMA symbols when FDM is used.
Claims20
A method of communicating data between a mobile communication device and a base station, wherein the data is communicated using a plurality of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the method comprising:
- receiving resource allocation information;
- and
- transmitting the data according to the resource allocation information,
- wherein the resource allocation is used to indicate one or more tiles in a first set of OFDMA symbols, the one or more tiles being related to an IEEE802.16e system or an IEEE802.16m system,
- wherein, within the first set of OFDMA symbols, one or more Partial Usage of Sub-Channels (PUSC) sub-channels of the IEEE802.16e system and one or more Distributed Resource Units (DRUs) of the IEEE802.16m system are frequency division multiplexed,
- wherein each PUSC sub-channel is based on a tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols,
- wherein each DRU is based on a tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols, each DRU being obtained by an extension of the tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols in a time domain,
- wherein X1=X2=4, Y1=3, and Y2=6, and
- wherein the first set of OFDMA symbols consist of 6 OFDMA symbols.
A method of communicating data between a mobile communication device and a base station, wherein the data is communicated using a plurality of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the method comprising:
- frequency division demultiplexing a first set of OFDMA symbols to provide one or more Partial Usage of Sub-Channels (PUSC) sub-channels of an IEEE802.16e system and one or more Distributed Resource Units (DRUs) of an IEEE802.16m system,
- wherein each PUSC sub-channel is based on a tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols,
- wherein each DRU is based on a tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols, each DRU being obtained by an extension of the tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols in a time domain,
- wherein X1=X2=4, Y1=3, and Y2=6, and
- wherein the first set of OFDMA symbols consist of 6 OFDMA symbols.
A mobile communication device configured to wirelessly communicate data with a base station, wherein the data is communicated using a plurality of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the mobile communication device comprising:
- a RF unit;
- and
- a processor operatively connected to the RF unit and configured to receive resource allocation information and to transmit the data according to the resource allocation information,
- wherein the resource allocation is used to indicate one or more tiles in a first set of OFDMA symbols, the one or more tiles being related to an IEEE802.16e system or an IEEE802.16m system,
- wherein, within the first set of OFDMA symbols, one or more Partial Usage of Sub-Channels (PUSC) sub-channels of the IEEE802.16e system and one or more Distributed Resource Units (DRUs) of the IEEE802.16m system are frequency division multiplexed,
- wherein each PUSC sub-channel is based on a tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols,
- wherein each DRU is based on a tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols, each DRU being obtained by an extension of the tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols in a time domain,
- wherein X1=X2=4, Y1=3, and Y2=6, and
- wherein the first set of OFDMA symbols consist of 6 OFDMA symbols.
A base station configured to wirelessly communicate with a mobile communication device, wherein the data is communicated using a plurality of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the base station comprising:
- a RF unit;
- and
- a processor operatively connected to the RF unit and configured to frequency division demultiplex a first set of OFDMA symbols to provide one or more Partial Usage of Sub-Channels (PUSC) sub-channels of an IEEE802.16e system and one or more Distributed Resource Units (DRUs) of an IEEE802.16m system,
- wherein each PUSC sub-channel is based on a tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols,
- wherein each DRU is based on a tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols, each DRU being obtained by an extension of the tile of X1 contiguous subcarriers and Y1 contiguous OFDMA symbols in a time domain,
- wherein X1=X2=4, Y1=3, and Y2=6, and
- wherein the first set of OFDMA symbols consist of 6 OFDMA symbols.
Dependencies are inferred from the claim text.