Patent number 8761791 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "In a scenario where multiple RRUs (radio remote units) share a cell, although multiple RRUs under the same indoor baseband processing unit distribute at different station addresses, they are logically in the same cell. Therefore, cell parameters, such as the number of carriers, frequency point and channel configuration, of each RRU are the same. In this situation, for a downlink channel, each RRU transmits the same PDSCH/PDCCH (physical downlink shared channel/physical downlink control channel) signals; for an uplink channel, each RRU jointly receives or selectively receives PUCCH/PUSCH (physical uplink control channel/physical uplink shared channel) signals transmitted by a UE (user equipment).
"In the process of implementing the preceding solution, the inventor finds at least the following problem in the prior art: In the situation where multiple RRUs share a cell, a user equipment may occupy all RRUs in the cell to send and receive signals. In this case, multiple downlink/uplink channels transmit/receive the same signals, resulting in waste of channel resources."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventors' summary information for this patent: "Embodiments of the present invention provide a resources allocation method and apparatus for multiple radio remote units sharing a cell, to solve the problem of a waste of channel resources in resources allocation for the multiple radio remote units sharing a cell.
"To achieve the preceding objective, the following technical solutions are adopted in the embodiments of the present invention:
"In one aspect, an embodiment of the present invention provides a resources allocation method for multiple radio remote units sharing a cell, including:
"in the cell with multiple radio remote units, measuring a test value of a reference signal of a user equipment in the cell under each radio remote unit; and selecting a radio remote unit with the maximum test value as a work radio remote unit of the user equipment.
"In another aspect, an embodiment of the present invention provides a resources allocation apparatus for multiple radio remote units sharing a cell, including:
"a reference signal measurement unit, configured to measure a test value of a reference signal of a user equipment in a cell under each radio remote unit; and a selecting unit, configured to select a radio remote unit with the maximum test value measured by the reference signal measurement unit as a work radio remote unit of the user equipment.
"According to the resources allocation method and apparatus for multiple radio remote units sharing a cell provided in the embodiments of the present invention, in a condition that multiple radio remote units share a cell, a corresponding work radio remote unit is selected for a user equipment according to a test value of a reference signal of the user equipment under each radio remote unit in the cell, thereby solving the problem of a waste of channel resources in resources allocation for the multiple radio remote units sharing a cell."
URL and more information on this patent, see: Zhou, Pengbin; Li, Wei; He, Longke; Wang, Dingwei. Resources Allocation Method and Apparatus for Multiple Radio Remote Units Sharing a Cell. U.S. Patent Number 8761791, filed
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