Radio resource allocation to reduce uplink interference
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsFredric Kronestedt, Anette Borg, Lars Näslund
Life of this patent
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Abstract
A network node (28) of a radio access network (20) comprises a scheduler (40) configured to provide an allocation of an uplink resource to an indoor wireless terminal (30) in communication over an air interface with the radio access network. The allocation of the network node is made in coordinated manner with resource allocation of another network node whereby any interference by reason of allocation of same uplink resource must be with another indoor wireless terminal served by the another network node. Preferably the another network node is a network node which serves a neighboring or adjacent cell.
Claims28
A network node of a radio access network which comprises a scheduler configured to provide an allocation of an uplink resource to an indoor wireless terminal for communications over an air interface with the network node, the allocation by the network node being in a coordinated manner with the resource allocation of another network node whereby any interference by reason of allocation of the same uplink resource must be with another indoor wireless terminal served by the another network node;
- wherein with respect to a scheduling period the scheduler is configured to provide an allocation of at least one resource block(s) of a resource grid of time-frequency resources for uplink transmission from the wireless terminal to the network node over the radio interface;
- and
- wherein the scheduler is further configured to allocate a first portion of the grid to indoor wireless terminals and a second portion of the grid to other wireless terminals.
A method of operating a network node comprising:
- allocating an uplink resource to an indoor wireless terminal in communication over an air interface with the network node in a coordinated manner with the resource allocation of another network node whereby any interference by reason of allocation of the same uplink resource must be with another indoor wireless terminal served by the another network node;
- receiving an uplink transmission from the indoor wireless terminal on the uplink resource;
- and
- allocating at least one resource block(s) of a scheduling period of a resource grid of time-frequency resources for uplink transmission from the wireless terminal to the network node over the radio interface;
- wherein a first portion of the grid is allocated to indoor wireless terminals and a second portion of the grid is allocated to other wireless terminals.
A method of operating a radio access network comprising a first network node and a second network node, the method comprising:
- the first network node allocating an uplink resource to a first indoor wireless terminal in communication over an air interface with the radio access network;
- the second network node ensuring that a second wireless terminal is also an indoor wireless terminal before allocating a same uplink resource to the second wireless terminal as did the first network node to the first wireless terminal;
- and
- each node allocating at least one resource block(s) of a scheduling period of a resource grid of time-frequency resources for uplink transmission from a wireless terminal to the network node over the radio interface;
- wherein a first portion of the grid is allocated to indoor wireless terminals and a second portion of the grid is allocated to other wireless terminals.
A method of operating a radio access network comprising a first network node and a second network node, the method comprising:
- both the first network node and the second network node making allocations of uplink resources whereby wireless terminals which are indoor wireless terminals are assigned uplink resources which are in a first portion of a frequency-time grid;
- both the first network node and the second network node making allocations of uplink resources whereby wireless terminals which are not indoor wireless terminals are assigned uplink resources which are in a second portion of a frequency-time grid;
- the allocations requiring that any interference experienced by an indoor wireless terminal by reason of allocation of same uplink resource be with another indoor wireless terminal.
Dependencies are inferred from the claim text.