Multi-user multiplexing frame structure for eMTC
AssigneeQUALCOMM Incorporated
InventorsRenqiu Wang, Hao Xu, Wanshi Chen
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Abstract
Certain aspects of the present disclosure generally relate to wireless communications, and more specifically increasing user capacity through a frame structure which supports eMTC UL multi-user multiplexing. According to aspects, a UE may identify at least one narrowband region within a wider system bandwidth, determine at least one parameter assigned to the UE for transmitting symbols of a physical uplink channel in the narrowband region that are multiplexed with symbols transmitted by one or more other UEs, and transmit the physical uplink channel using the at least one determined parameter.
Claims30
A method for wireless communications by a user equipment (UE), comprising:
- identifying at least one narrowband region, comprising six resource blocks (RB) or less, within a wider system bandwidth;
- determining a cyclic shift assigned to the UE to multiplex symbols of a physical uplink channel transmitted by the UE in the narrowband region with symbols transmitted by one or more other UEs in the narrowband region with at least a different cyclic shift;
- and
- transmitting the symbols of the physical uplink channel in the narrowband region using the determined cyclic shift and using time-frequency resources also used by the one or more other UEs in the narrowband region.
A method for wireless communications by an evolved Node B (eNB), comprising:
- identifying at least one narrowband region, comprising six resource blocks (RB) or less, within a wider system bandwidth;
- assigning a cyclic shift to a user equipment (UE) to multiplex symbols of a physical uplink channel transmitted by the UE in the narrowband region with symbols transmitted by one or more other UEs in the narrowband region with at least a different cyclic shift;
- and
- receiving, from the UE, the symbols of the physical uplink channel in the narrowband region using the assigned cyclic shift and, using time-frequency resources also used by the one or more other UEs in the narrowband region.
An apparatus for wireless communications by a user equipment (UE), comprising:
- means for identifying at least one narrowband region, comprising six resource blocks (RB) or less, within a wider system bandwidth;
- means for determining a cyclic shift assigned to the UE to multiplex symbols of a physical uplink channel transmitted by the UE in the narrowband region with symbols transmitted by one or more other UEs in the narrowband region with at least a different cyclic shift;
- and
- means for transmitting the symbols of the physical uplink channel in the narrowband region using the determined cyclic shift and using time-frequency resources also used by the one or more other UEs in the narrowband region.
An apparatus for wireless communications by an evolved Node B (eNB), comprising:
- means for identifying at least one narrowband region, comprising six resource blocks (RB) or less, within a wider system bandwidth;
- means for assigning a cyclic shift to a user equipment to multiplex-symbols of a physical uplink channel transmitted by the UE in the narrowband region with symbols transmitted by one or more other UEs in the narrowband region with at least a different cyclic shift;
- and
- means for receiving, from the UE, the symbols of the physical uplink channel in the narrowband region using the assigned at least one assigned parameter cyclic shift and using time-frequency resources also used by the one or more other UEs in the narrowband region.
Dependencies are inferred from the claim text.