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
Life of this patent
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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 OFDM symbols, 18 sub-carriers by 6 OFDM symbols, or 20 sub-carriers by 6 OFDM symbols.
Claims12
A method of communicating by a mobile station in an Institute of Electrical and Electronics Engineers (IEEE) 802.16m system, the method comprising:
- receiving information via a control channel of a super-frame from a base station, the information being related to an IEEE802.16e system;
- and
- transmitting signals using one or more tiles in a set of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the one or more tiles being related to the IEEE802.16e system or the IEEE802.16m system, when the information indicates that the IEEE802.16e system is supported,
- wherein, within the 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, the tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols 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 set of OFDMA symbols consist of 6 OFDMA symbols.
A method of communicating by a base station in an Institute of Electrical and Electronics Engineers (IEEE) 802.16m system, the method comprising:
- transmitting information via a control channel of a super-frame to plural mobile stations, the information being related to an IEEE802.16e system;
- and
- receiving signals via one or more tiles in a set of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the one or more tiles being related to the IEEE802.16e system or the IEEE802.16m system, when the information indicates that the IEEE802.16e system is supported,
- wherein, within the 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, the tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols 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 set of OFDMA symbols consist of 6 OFDMA symbols.
A mobile station configured to wirelessly communicate with a base station in an Institute of Electrical and Electronics Engineers (IEEE) 802.16m system, the mobile station comprising:
- a RF unit;
- and
- a processor operatively connected to the RF unit and configured to receive information via a control channel of a super-frame from the base station, the information being related to an IEEE802.16e system, and to transmit signals using one or more tiles in a set of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the one or more tiles being related to the IEEE802.16e system or the IEEE802.16m system, when the information indicates that the IEEE802.16e system is supported,
- wherein, within the 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, the tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols 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 set of OFDMA symbols consist of 6 OFDMA symbols.
A base station configured to wirelessly communicate with plural mobile stations in an Institute of Electrical and Electronics Engineers (IEEE) 802.16m system, the base station comprising:
- a RF unit;
- and
- a processor operatively connected to the RF unit and configured to transmit information via a control channel of a super-frame to the plural mobile stations, the information being related to an IEEE802.16e system, and to receive signals via one or more tiles in a set of Orthogonal Frequency Division Multiple Access (OFDMA) symbols, the one or more tiles being related to the IEEE802.16e system or the IEEE802.16m system, when the information indicates that the IEEE802.16e system is supported,
- wherein, within the 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, the tile of X2 contiguous subcarriers and Y2 contiguous OFDMA symbols 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 set of OFDMA symbols consist of 6 OFDMA symbols.
Dependencies are inferred from the claim text.