摘要:
A method of wireless communication for an enhanced new carrier type cell includes transmitting downlink common signals and channels at a low duty cycle while in a dormant state. The method also includes transmitting downlink common signals and channels at a high duty cycle while in an active state. Another method of wireless communication includes receiving a trigger; and switching a cell between an active state and a dormant state based on the received trigger.
摘要:
Aspects of the present disclosure provide a method performed by a wireless device. The method generally includes identifying one or more narrowband regions within a wider system bandwidth, based on an amount of available resources in the system bandwidth, and communicating using at least one of the identified narrowband regions.
摘要:
A method, an apparatus, and a computer program product for wireless communication are provided. An eNB transmits an indicator for a frame identifying a DL transmission period. The indicator may comprise a frame format indicator identifying only a plurality of downlink subframes scheduled for a contention-based carrier. The eNB may transmit a second indicator for an UL transmission period and may grant a UE at least one UL subframe for UL transmission. The UE monitors for an UL grant and for a D-CUBS at either the end of the DL subframes or after an UL assignment. The eNB may transmit a provisional grant UL assignment for UL transmission on an SCC and respond with a grant confirmation in response to an SR granting the UE resources for UL data transmission.
摘要:
In the application of TDD and eIMTA to LTE in the unlicensed spectrum, various alterations may be needed to compensate for interference from and the behavior of RATs operating in this range of frequencies. Various UE and base station methods are presented, including modified TDD configurations and UE behaviors to advance operations on unlicensed spectrum. A method, an apparatus, and a computer-readable medium for wireless communication are provided whereby configuration information is conveyed to a UE for communicating on a carrier in the unlicensed spectrum. The configuration information indicates a subframe allocation for at least one frame on the unlicensed carrier. Other aspects are directed to the detection of the transmission, communication of new and modified eIMTA configuration transmissions, and mechanism and behaviors which address unreceived configuration information.
摘要:
Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to increased diversity for devices with limited communications resources. An example method generally includes transmitting data as a bundled transmission to a device with limited communications resources, the bundled transmission comprising multiple bursts wherein each burst spans a plurality of transmission time intervals (TTIs) and the same data is transmitted in each burst, and taking action to increase diversity (e.g., at least one of spatial diversity, time diversity, frequency diversity, etc.) for the bundled transmission.
摘要:
Uplink power control techniques for ultra low latency in Long Term Evolution (LTE) devices are presented. For example, an example method for transmission power control is described that includes determining that a first uplink transmission and a second uplink transmission are scheduled for transmission during a symbol of a subframe. In an aspect, the first uplink transmission has a first transmission time interval (TTI) and a first transmission power and the second uplink transmission has a second TTI, the second TTI being different from the first TTI, and a second transmission power. Furthermore, the method may include determining that a power limitation condition is met for one or both of the first transmission power or the second transmission power and adjusting one or both of the first transmission power or the second transmission power based on a determination that the power limitation condition is met.
摘要:
A method of wireless communications includes adapting to downlink/uplink resource allocations. In particular, the downlink/uplink communications may be adjusted according to time division duplexed (TDD) configurations of serving and neighbor cells.
摘要:
Certain aspects relate to methods and apparatus for latency reduction for UEs in a RRC connected mode. During contention-based uplink access by groups of UEs within a subframe, an eNB may decode the received uplink transmission based, at least in part, on the assigned group of resources assigned to the UE and used for transmission. Additional orthogonalization techniques such as reduced TTI size can be used to reduce collisions among different users performing contention-based transmissions. Furthermore, when the eNB fails to successfully decode the uplink transmission, the eNB may identify the UE that sent the uplink transmission based on a detected reference signal and may transmit an uplink assignment to the identified UE.
摘要:
A method of wireless communication includes receiving position location reference signals (PRSs) from multiple remote radio heads (RRHs) and a macro eNodeB having a same physical cell identity (PCI). Each PRS is a same PRS. Additionally, the PRSs from the multiple RRHs are received on subframes that are different from subframes used by the macro eNodeB. Furthermore, each PRS does not indicate a source of transmission. The method also includes determining a time difference between the received PRSs.
摘要:
Various aspects described herein relate to communicating in a wireless network. A transmission time interval (TTI) for an uplink control channel transmission within a subframe is determined, wherein the TTI comprises of a number of symbols which are a subset of a plurality of symbols in the subframe. Uplink control data can be transmitted over the uplink control channel during the TTI.