Additional modulation information signaling for high speed downlink packet access
US7715430B2 · kind B2 · utility
13Cited by
1References
23Claims
0Family size
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Key dates
| Filing date | Oct 30, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Jul 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0013
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The modulation indication bit is interpreted as a QPSK/xQAM modulation indication if both the user equipment and the serving cell support 64QAM modulation, such that if QPSK is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted as is presently interpreted today as defined in the 3GPP release 5 specification, and if xQAM is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted such that only 6 bits are used for code information and one bit is stolen for use for the 16QAM/64QAM selection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.