Scrambling sequence initialization for coordinated multi-point transmissions
AssigneeQUALCOMM Incorporated
InventorsJuan Montojo, Tao Luo, Wanshi Chen
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Abstract
Methods, systems, apparatus and computer program products are provided for generating a shared initialization code for physical channel data scrambling in an LTE Advanced coordinated multipoint transmission network. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
Claims39
A method, comprising:
- receiving at a user equipment (UE), a virtual cell identifier from a coordinated multi-point (CoMP) serving cell, wherein the virtual cell identifier is different from a serving cell identifier of the CoMP serving cell;
- initializing a UE reference signal (UE-RS) sequence generator based at least in part on the virtual cell identifier;
- generating a UE-RS sequence with the UE-RS sequence generator, the UE-RS sequence being associated with the virtual cell identifier;
- and
- generating the UE-RS based at least in part on the UE-RS sequence.
A communication device, comprising:
- a processor;
- and
- a memory comprising processor executable instructions that, when executed by the processor, configure the communication device to:
- receive a virtual cell identifier from a coordinated multi-point (CoMP) serving cell, wherein the virtual cell identifier is different from a serving cell identifier of the CoMP serving cell;
- initialize a UE reference signal (UE-RS) sequence generator based at least in part on the virtual cell identifier;
- generate a UE-RS sequence with the UE-RS sequence generator, the UE-RS sequence being associated with the virtual cell identifier;
- and
- generate the UE-RS based at least in part on the UE-RS sequence.
A computer program product, embodied on a non-transitory computer-readable storage medium, comprising:
- program code for receiving a virtual cell identifier from a coordinated multi-point (CoMP) serving cell on a physical downlink control channel (PDCCH), wherein the virtual cell identifier is different from a serving cell identifier of the CoMP serving cell;
- program code for initializing a UE reference signal (UE-RS) sequence generator based at least in part on the virtual cell identifier;
- program code for generating a UE-RS sequence with the UE-RS sequence generator, the UE-RS sequence being associated with the virtual cell identifier;
- and
- program code for generating the UE-RS based at least in part on the UE-RS sequence.
A communication device, comprising:
- means for receiving a virtual cell identifier from a coordinated multi-point (CoMP) serving cell, wherein the virtual cell identifier is different from a serving cell identifier of the CoMP serving cell;
- means for initializing a UE reference signal (UE-RS) sequence generator based at least in part on the virtual cell identifier;
- means for generating a UE-RS sequence with the UE-RS sequence generator, the UE-RS sequence being associated with the virtual cell identifier;
- and
- means for generating the UE-RS based at least in part on the UE-RS sequence.
Dependencies are inferred from the claim text.