摘要:
Certain aspects of a method and system for processing signals in a communication system may include maximizing system capacity for a time division duplex (TDD) multiple-input multiple-output (MIMO) system, based on reducing a search range within which to find a group of signals having maximum channel gain. At least one of: a first signal for a first user and a second signal for a second user may be selected, which are both within the reduced search range, and which provides a maximum system capacity. The first signal for the first user may be selected from the reduced search range corresponding to a channel gain that is greater than a channel gain corresponding to a remaining portion of the reduced search range. The reduced search range may be generated by sorting a plurality of signals based on a channel gain corresponding to each of the plurality of signals.
摘要:
Aspects of a double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise maximizing system capacity using feedback information for a plurality of signals in a frequency division duplex system to reduce a search range within which a group of signals having maximum channel gain are located. The feedback information may comprise quantized gain for the signals. Quantized channel direction for the signals within the reduced search range may be requested and received by the transmitter. One or two signals from the reduced search range that maximizes system capacity may be selected. The receivers associated with these signals may then be selected as the user group.
摘要:
Aspects of a greedy search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise receiving feedback information via a communication channel for a plurality of users in a frequency division duplex system. The system capacity may be maximized using the feedback information based on a signal from a single user within a reduced search range or based on the signal from the single user and at least one other signal from another user within a remaining portion of the search range. The feedback information may comprise quantized gain and/or direction of the channel state information of the users.
摘要:
In a video processing system, a method and system for a mobile receiver architecture for US Band cellular and VHF/UHF broadcasting are provided. Received channels may be processed in at least one radio frequency front end (RFFE) in a mobile terminal and may comprise at least one of a VHF/UHF broadcast channel and World band cellular channels capable of carrying voice and data. The cellular channels may be WCDMA 1900 or 850 MHz and GSM 1900 or 850 MHz. A single cellular/broadcast radio frequency integrated circuit (RFIC) may be utilized for processing the received channels. In another embodiment, a cellular band RFIC may process the EU band cellular channels and a broadcast RFIC may process the broadcast channel. Moreover, a first RFIC may process the WCDMA channels, a second RFIC may process the GSM channels, and a broadcast RFIC may process the broadcast channel.
摘要:
An iterative multistage detection system and method for orthogonally multiplexing K channels onto a signal processing chain using N orthogonal sequences of length N. The K channels include a first set of N channels and a second set of M channels (the M channels being separate and distinct from the N channels), where K=N+M. In a first iteration, interference from the first set of N channels imparted on the second set of M channels is removed from the multiplexed signal, thereby enabling the symbol values associated with the second set of M channels to be reliably estimated. In a second iteration, interference from the second set of M channels imparted on the first set of N channels is removed from the first set of N channels, thereby enabling the symbol values associated with the first set of N channels to be reliably estimated.
摘要:
An iterative multistage detection system and method for orthogonally multiplexing K channels onto a signal processing chain using N orthogonal sequences of length N. The K channels include a first set of N channels and a second set of M channels (the M channels being separate and distinct from the N channels), where K=N+M. In a first iteration, interference from the first set of N channels imparted on the second set of M channels is removed from the multiplexed signal, thereby enabling the symbol values associated with the second set of M channels to be reliably estimated. In a second iteration, interference from the second set of M channels imparted on the first set of N channels is removed from the first set of N channels, thereby enabling the symbol values associated with the first set of N channels to be reliably estimated.
摘要翻译:一种用于使用长度为N的N个正交序列将K个信道正交地多路复用到信号处理链上的迭代多级检测系统和方法.K信道包括第一组N个信道和第二组M个信道(M个信道是分离的和不同的 从N个信道),其中K = N + M。 在第一次迭代中,从多路复用信号中去除了在第二组M个信道上施加的来自第一组N个信道的干扰,从而使得能够可靠地估计与第二组M个信道相关联的符号值。 在第二次迭代中,从第一组N个信道中去除了在第一组N个信道上施加的来自第二组M个信道的干扰,从而使得能够可靠地估计与第一组N个信道相关联的符号值。
摘要:
An iterative multistage detection system and method for orthogonally multiplexing K channels onto a signal processing chain using N orthogonal sequences of length N. The K channels include a first set of N channels and a second set of M channels (the M channels being separate and distinct from the N channels), where K=N+M. In a first iteration, interference from the first set of N channels imparted on the second set of M channels is removed from the multiplexed signal, thereby enabling the symbol values associated with the second set of M channels to be reliably estimated. In a second iteration, interference from the second set of M channels imparted on the first set of N channels is removed from the first set of N channels, thereby enabling the symbol values associated with the first set of N channels to be reliably estimated.
摘要:
Certain aspects of a method and system for processing signals in a communication system may include receiving a plurality of spatially multiplexed communication signals for a plurality of channels via a digital video broadcast (DVB) communication path. A plurality of channel weights may be applied to at least a portion of the plurality of spatially multiplexed communication signals. High definition television (HDTV) broadcast information may be received via the DVB communication path. A phase and an amplitude of at least a portion of the received plurality of spatially multiplexed communication signals may be adjusted based on the applied plurality of channel weights. The applied plurality of channel weights may comprise at least one of: amplitude correction weights and phase correction weights. The received plurality of spatially multiplexed communication signals may be spatially demultiplexed.
摘要:
Methods and systems for communicating with a plurality of communications networks are provided herein. Aspects of the system may comprise cellular processing circuitry that processes a plurality of cellular frequency band communications services, comprising at least one voice service and at least one data service. The cellular processing circuitry may comprise a plurality of cellular processing integrated circuits within a mobile terminal. Broadcast processing circuitry may processes VHF/UHF frequency band broadcast services in at least one single broadcast processing integrated circuit within the mobile terminal. The cellular frequency band communications services may operate independently from the VHF/UHF frequency band broadcast services at the mobile terminal and the VHF/UHF frequency band broadcast services may be received from a digital video broadcasting (DVB) system.
摘要:
A method and system for mobile architecture supporting cellular or wireless networks and broadcast utilizing a single chip cellular and single chip broadcast silicon solution is provided. Aspects of the system may comprise circuitry that receives a plurality of cellular frequency band communications services, services which comprise at least one voice service and at least one data service, in a single cellular processor integrated circuit within a mobile terminal. In addition, the system may comprise circuitry that receives VHF/UHF band broadcast services in a single broadcast processor integrated circuit within the mobile terminal. The plurality of cellular frequency band communications services may operate independently from the VHF/UHF band broadcast services at the mobile terminal.