摘要:
According to an example embodiment, a method may include allocating, within a single physical resource unit (PRU), a plurality of channel sounding groups. Wherein each channel sounding group includes a frequency-time domain code division multiplexing (CDM) allocation. The method may also include broadcasting, in a downlink direction to one or more mobile stations in a wireless network, a signal that causes the receiving mobile stations to transmit a channel sounding signal. The method may further include receiving at least one channel sounding signal from at least one of the one or more mobile stations, the channel sounding signal being received in an uplink direction via one or more channel sounding groups. And, the method may include estimating the channel quality, of the channel used by the physical resource unit, based upon the received at least one channel sounding signal.
摘要:
According to an example embodiment, a method may include allocating, within a single physical resource unit (PRU), a plurality of channel sounding groups. Wherein each channel sounding group includes a frequency-time domain code division multiplexing (CDM) allocation. The method may also include broadcasting, in a downlink direction to one or more mobile stations in a wireless network, a signal that causes the receiving mobile stations to transmit a channel sounding signal. The method may further include receiving at least one channel sounding signal from at least one of the one or more mobile stations, the channel sounding signal being received in an uplink direction via one or more channel sounding groups. And, the method may include estimating the channel quality, of the channel used by the physical resource unit, based upon the received at least one channel sounding signal.
摘要:
According to one general aspect, a method of using a base station comprising establishing an association between the base station and at least one mobile station (MS) via a communications channel. In such an embodiment, the communications channel may be divided into resource blocks. In various embodiments, the method may include broadcasting a signal-to-noise (SNR) threshold message that includes a SNR threshold. In some embodiments, the method may include receiving at least one reporting message, respectively from the at least one mobile station(s), indicating which resource blocks measured a SNR equal to or above the SNR threshold. In various embodiments, the method may also include allocating, in a time division multiplexing mode, resource blocks for communication with the mobile station(s) based, at least in part, upon the reporting message(s).
摘要:
According to an example embodiment, a method may include broadcasting, in a downlink direction to one or more mobile stations in a wireless network, a message that includes a channel quality threshold, and receiving a signal from at least one of the one or more mobile stations, the signal being received in an uplink direction on one or more resource blocks that have a channel quality, as measured by one of the one or more mobile station in a downlink direction, that is greater than or equal to the channel quality threshold.
摘要:
In a telecommunication network, pilot signals are provided in orthogonal frequency division multiplexing frames to enable a single-carrier frequency division multiple access method to work substantially harmoniously with an orthogonal frequency division multiplexing access method in uplink. Each orthogonal frequency division multiplexing frame comprises a plurality of orthogonal frequency division multiplexing symbols. At least one pilot signal is placed within at least one existing orthogonal frequency division multiplexing symbol.
摘要:
In a telecommunication network, pilot signals are provided in OFDM (orthogonal frequency division multiplexing) frames to enable the SC-FDMA (the single-carrier frequency division multiple access) concept to work with the OFDMA concept in uplink substantially harmonically, wherein each OFDM frame includes a predetermined plurality of OFDM symbols, and at least one pilot signal is placed in addition to other data and/or signals within at least one existing OFDM symbol of said predetermined plurality of OFDM symbols.
摘要:
M physical resource blocks PRBs are allocated for localized resource allocation LRA and N−M PRBs are allocated for distributed resource allocation DRA. Each PRB has U subcarriers. Subcarriers of the N PRBs are permuted to result in N subchannels. Serially for each mth one of the M PRBs allocated for LRA, the subcarriers for an mth one of the M PRBs allocated for LRA are punctured from the permuted subchannels. After puncturing, subcarriers of one of the subchannels are filled with subcarriers of all other subchannels which were punctured in the mth one of the M PRBs. The result after puncturing and filling for all M PRBs allocated for LRA is N−M PRBs each having U subcarriers and M PRBs each having U subcarriers. Then there is a wireless communication using at least one of a LRA on the resulting M PRBs or a DRA on the resulting N−M PRBs.
摘要:
Various example embodiments are disclosed herein related to broadcast control headers for wireless networks. According to an example embodiment, a method may include allocating resources for a broadcast channel for a wireless network may include determining a set of physical resource units (PRUs), each PRU including a plurality of contiguous subcarriers, selecting one or more subsets of the PRUs, each subset including a plurality of PRUs distributed across the set of PRUs, and determining a plurality of logical resource units (LRUs) from each subset of PRUs, including permutating the subcarriers independently within each subset of PRUs to obtain the plurality of LRUs for each subset of PRUs, each LRU including a plurality of distributed subcarriers.
摘要:
M physical resource blocks PRBs are allocated for localized resource allocation LRA and N-M PRBs are allocated for distributed resource allocation DRA. Each PRB has U subcarriers. Subcarriers of the N PRBs are permuted to result in N subchannels. Serially for each mth one of the M PRBs allocated for LRA, the subcarriers for an mth one of the M PRBs allocated for LRA are punctured from the permuted subchannels. After puncturing, subcarriers of one of the subchannels are filled with subcarriers of all other subchannels which were punctured in the mth one of the M PRBs. The result after puncturing and filling for all M PRBs allocated for LRA is N-M PRBs each having U subcarriers and M PRBs each having U subcarriers. Then there is a wireless communication using at least one of a LRA on the resulting M PRBs or a DRA on the resulting N-M PRBs.
摘要:
Various example embodiments are disclosed. According to an example embodiment, a method may comprise sending, by a sending wireless station in a wireless network, data to a receiving wireless station, the data being sent via at least one logical distributed resource unit (LDRU), the LDRU including slots included in at least one physical resource unit (PRU), each of the slots included in the at least one PRU being associated with a different orthogonal frequency division multiple access (OFDMA) symbol and a different OFDMA subcarrier.