摘要:
Embodiments of methods and apparatus for determining and/or quantizing a beamforming matrix are disclosed. In some embodiments, the determining and/or quantizing of the beamforming matrix may include the use of a base codebook and a differential codebook. Additional variants and embodiments are also disclosed.
摘要:
A wireless communication method including: transmitting a first control signal from a connected wireless station to a wireless terminal, the connected wireless station being one of a plurality of wireless stations that is connected to the wireless terminal, the first control signal relating to a communication level between the wireless terminal and at least one wireless station that is selected from among the plurality of the wireless station, and controlling, by the wireless terminal that receives the first control signal, a transmission power of a transmission signal to the selected at least one wireless station based on the received first control signal.
摘要:
The embodiments of the present invention disclose an uplink power control method, a terminal and a base station, which can adjust or determine uplink transmission power of a terminal on subframes which belong to different subframe groups respectively. The method includes: a base station determining subframe group information, the subframe group information being used by a terminal to determine uplink transmission power adjustment amounts on subframes which belong to different subframe groups; and the base station transmitting the subframe group information to the terminal. A terminal determines uplink transmission power adjustment amounts on subframes which belong to different subframe groups, and determines uplink transmission power on corresponding subframes according to the determined uplink transmission power adjustment amounts on the subframes which belong to the different subframe groups.
摘要:
Embodiments of the present invention provide a power usage state information transmission method and apparatus. The transmission method for transmitting power usage state information according to the present invention includes: determining, by a terminal device, a power headroom PH of a second cell corresponding to the terminal device; and sending, by the terminal device to the first network device, the PH and channel configuration information corresponding to the PH. According to the embodiments of the present invention, the first network device can readily acquire, according to the PH and the channel configuration information, a power usage state of the second cell corresponding to the terminal device. In this way, transmit power of UE between different network devices can be properly allocated, and therefore, system resources are properly used.
摘要:
A first network device may transmit a first indication of a transmission power level of the first network device so that a user equipment (UE) can determine a pathloss. The first network device may also transmit, to the UE, a second indication of whether accumulation of transmit power control (TPC) commands is enabled. The first network device may also transmit, on a single channel to the UE, a TPC command and scheduling information related to a shared uplink channel.
摘要:
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives control information from a first cell, generates an uplink transmission to a second cell based in part on the received control information from the first cell, receives a transmission power setting based on the uplink transmission to the second cell, and transmits in uplink using the transmission power to the second cell.
摘要:
The method includes: obtaining an initial power allocation ratio of an edge user, and receiving a first SINR sent by the edge user at the initial power allocation ratio; calculating a first power allocation ratio according to the first SINR, selecting a greater power allocation ratio A, and receiving a second SINR sent by the edge user at the power allocation ratio A; determining a third SINR between a first SINR value and a second SINR value; and calculating a second power allocation ratio according to the third SINR, selecting a greater power allocation ratio B, and adjusting power allocation according to the power allocation ratio. Embodiments of the present invention mainly apply to a power control process in the Co-MIMO system.
摘要:
Embodiments of a mobile device transmitter and methods for transmitting signals in different signal dimensions are generally disclosed herein. The mobile device transmitter comprises a mapper to map a block of two or more input modulation symbols to different signal dimensions comprising two or more spatial dimensions, and linear transform circuitry to perform a linear transform on the block of mapped input modulation symbols to generate a block of precoded complex-valued output symbols such that each output symbol carries some information of more than one input modulation symbol. The mobile device also comprises transmitter circuitry to generate time-domain signals from the blocks of precoded complex-valued output symbols for each of the spatial dimensions for transmission using the two or more antennas. The precoded complex-valued output symbols are mapped to different signal dimensions comprising at least different frequency dimensions prior to transmission.
摘要:
A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted.
摘要:
TPC is appropriately operated in response to access method switching timing, an error is prevented from occurring in communication, and influence given to another cell due to transmission of unnecessary power is reduced.A base station apparatus which performs wireless communication with a mobile station apparatus while switching a plurality of kinds of communication method, transmits control information for performing transmit power control of the mobile station apparatus to the mobile station apparatus. The mobile station apparatus receives the control information for performing the transmit power control from the base station apparatus and determines a transmitted power according to the control information when switching the communication method.