摘要:
A method of estimating and reporting, for a receiver (4) associated with a plurality of antennas (41, 42, 43, 44), a channel quality measure of a wireless communication channel from a transmitter (2) to the receiver, the method comprising the steps of: selecting at least one antenna configuration from a set of mutually different antenna configurations inherent to the receiver; determining a channel quality measure for the selected antenna configuration; and reporting the channel quality measure. The set of mutually different antenna configurations comprises antenna configurations that are allocated to different frequency bands (FB1, FB3). A receiver (4), user equipment, computer program and computer readable medium are also disclosed.
摘要:
A method of estimating and reporting, for a receiver (4) associated with a plurality of antennas (41, 42, 43, 44), a channel quality measure of a wireless communication channel from a transmitter (2) to the receiver, the method comprising the steps of: selecting at least one antenna configuration from a set of mutually different antenna configurations inherent to the receiver; determining a channel quality measure for the selected antenna configuration; and reporting the channel quality measure. The set of mutually different antenna configurations comprises antenna configurations that are allocated to different frequency bands (FB1,FB3). A receiver (4), user equipment, computer program and computer readable medium are also disclosed.
摘要:
A technique for managing measurements for at least two subscriptions in a mobile terminal is described. A method implementation of this technique performed in the mobile terminal comprises the steps of determining a common carrier set being an intersection between the first carrier set associated with a first subscription and the second carrier set associated with at least one second subscription, performing a first measurement on the first carrier set, and the second measurement on the second carrier set excluding the common carrier set, and mapping results associated with the first measurement of the first subscription relating to the common carrier set to the at least one second subscription.
摘要:
The current invention relates to a method of determining a quality of a received signal, wherein the method comprises receiving a signal comprising a first part and a second part and wherein at least the second part of the received signal comprises a scrambling sequence period; and determining a first noise-and-interference power of the first part of the received signal by removing a second noise-and-interference power of the second part of the signal, wherein the scrambling sequence period is utilized in the removal. The invention further relates to a corresponding device and system. Thereby, the invention is able to, among other things, reduce neighbor cell reference symbol interference in a dense network.
摘要:
A method of delay spread compensation, suitable for use in a communication device a having plurality of receiver antennas, is disclosed. The method comprises receiving a plurality of signals, each via a respective antenna, wherein each signal comprises a signal component corresponding to a transmitted signal, and wherein each received signal experiences a respective channel impulse response having a corresponding delay spread; determining estimates of each of the channel impulse responses; calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post-coding characteristics to produce at least a first delay spread compensated signal. Corresponding computer program product, processing arrangement and communication device are also disclosed.
摘要:
The current invention relates to a method of determining a quality of a received signal, wherein the method comprises receiving a signal comprising a first part and a second part and wherein at least the second part of the received signal comprises a scrambling sequence period; and determining a first noise-and-interference power of the first part of the received signal by removing a second noise-and-interference power of the second part of the signal, wherein the scrambling sequence period is utilized in the removal. The invention further relates to a corresponding device and system. Thereby, the invention is able to, among other things, reduce neighbor cell reference symbol interference in a dense network.
摘要:
A technique for managing activity states of at least two subscriptions in a terminal device is described. A method implementation of this technique performed in the terminal device comprises the steps of monitoring whether a first subscription is to transit or has transit from a first active state to a second active state while at least one second subscription is in a detached state, wherein the second active state is associated with a lower terminal activity than the first active state, if the result of the monitoring step is affirmative, waiting for a predetermined period of time, upon elapse of the predetermined period of time, if the first subscription is still in the second active state, triggering a transition of the first subscription from the second active state to an inactive state and initiating for the at least one second subscription a transition from a detached state to an inactive state.
摘要:
A method of delay spread compensation, suitable for use in a communication device a having plurality of receiver antennas, is disclosed. The method comprises receiving a plurality of signals, each via a respective antenna, wherein each signal comprises a signal component corresponding to a transmitted signal, and wherein each received signal experiences a respective channel impulse response having a corresponding delay spread; determining estimates of each of the channel impulse responses; calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post-coding characteristics to produce at least a first delay spread compensated signal. Corresponding computer program product, processing arrangement and communication device are also disclosed.
摘要:
A transmitted OFDM signal is detected in a receiver of a wireless communication system. The receiver has at least two receiver branches, each comprising an antenna, a front end receiver, a Discrete Fourier Transform unit, and a channel estimator. The receiver further comprises a detector for detecting received data symbols. The method comprises the steps of determining a system bandwidth associated with the transmitted signal; comparing the determined system bandwidth with a predetermined value; determining, if the system bandwidth is lower than the predetermined value, channel estimates separately for each branch, and detecting received data symbols from the received signals and corresponding channel estimates; and calculating, if the system bandwidth is higher than the predetermined value, a weighted sum of signals from each branch, determining a combined channel estimate, and detecting received data symbols from the weighted sum and the combined channel estimate.
摘要:
A technique for managing activity states of at least two subscriptions in a terminal device is described. A method implementation of this technique performed in the terminal device comprises the steps of monitoring whether a first subscription is to transit or has transit from a first active state to a second active state while at least one second subscription is in a detached state, wherein the second active state is associated with a lower terminal activity than the first active state, if the result of the monitoring step is affirmative, waiting for a predetermined period of time, upon elapse of the predetermined period of time, if the first subscription is still in the second active state, triggering a transition of the first subscription from the second active state to an inactive state and initiating for the at least one second subscription a transition from a detached state to an inactive state.