| 摘要 |
Receivers accommodating frequency band selection methods in wireless communications systems are described. Different frequency bands are associat ed with different alternative carrier frequencies and/or base station cell and/ or sector transmitter connection alternatives. Mobile node receivers (401) include two receiver chains (403, 405), each chain processing signals corresponding to a carrier. In some embodiments, each receiver chain (403, 405) includes its own controllable RF module (404, 406), and individual carrier band selection (408. 434) is performed in each RF module (404, 406). In some embodiments, the two receiver chains (403, 405) share a common RF module; however, each chain includes its own controllable baseband filter (414, 438). In various embodiments, the first chain (403) has higher complexity than the second chain (405). In most embodiments, each chain uses the same technology, e.g., spread spectrum OFDM or CDMA. Each chain obtains a quality indicator value on a different band and a comparison of quality indicator values is used in selecting the channel and carrier band for downlink traffic signaling. |
