Abstract:
Certain aspects of the present disclosure propose techniques for transmission time interval (TTI) bundling for physical downlink shared channel (PDSCH) in long term evolution (LTE). According to certain aspects a method is provided for wireless communications. The method may be performed, for example, by a user equipment (UE). The method generally includes identifying a transmit time interval (TTI) bundle comprising a subset of subframes from a set of subframes for transmitting data on a physical downlink shared channel (PDSCH) and receiving the data on the PDSCH in the subset of subframes.
Abstract:
A method of wireless communications identifies a first virtual cell identity. The method also includes determining one or more virtual cells based on the identified first virtual cell identity. The method further includes processing one channel based on the determination.
Abstract:
For an enhanced physical downlink control channel (EPDCCH), unlimited traffic-to-pilot ratio (TPR) variations across resource elements of a physical resource block (PRB) pair is problematic because of the detrimental affect the variations will have on the ability of a user equipment (UE) to perform inter-cell/intra-cell interference suppression (IS) and/or interference cancellation (IC) on EPDCCH of an interfering cell. A TPR limitation is placed on EPDCCH to facilitate IS/IC without causing practical limitations on EPDCCH management by an eNB. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided. The apparatus identifies a plurality of resource elements of at least one PRB pair for transmitting one or more control channels, divides the plurality of identified resource elements into one or more groups, and restricts a plurality of resource elements in a respective group to a TPR.
Abstract:
Aspects of the present disclosure provide techniques and apparatus for enhanced physical broadcast channel (PBCH) for new carrier type (NCT) in long term evolution (LTE). According to certain aspects, a method for wireless communications by a base station (BS) is provided. The method generally includes generating an enhanced physical broadcast channel (EPBCH) using a frequency division multiplexed (FDM) structure, wherein the EPBCH spans substantially a subframe duration and transmitting the EPBCH.
Abstract:
Certain aspects of the present disclosure generally relate to resolving ambiguous user equipment (UE) capability signaling. According to certain aspects, a method for wireless communications by a UE is provided. The method generally includes determining capabilities of the UE to support at least one of multiple-input multiple-output (MIMO) or coordinated multipoint (CoMP) features on different operating frequency bands of a radio access network (RAN), signaling, to a base station (BS) of the RAN, a first combination of capabilities of the UE for a combination of bands, signaling, to the BS, a second combination of capabilities, different than the first combination of capabilities, for the combination of bands, and identifying, based on or more criteria, a particular combination of capabilities to be used to communicate with the BS. In certain aspects, the UE may identify the combination of capabilities to use by applying a deterministic rule.
Abstract:
Techniques are provided for decoupling uplink and downlink operations. According to certain aspects, a wireless node (e.g., a low power node) may receive, from a base station of a first cell, signaling indicating a random access channel (RACH) configuration for a wireless device. The wireless node may then detect the wireless node performing a RACH detection (based on the RACH configuration) and report the RACH detection and desired UL configuration to the base station of the first cell. The base station of the first cell may then select the wireless node for serving the wireless device for UL operations (e.g., based on the reported RACH detection-and similar reports from other wireless nodes detecting the same RACH procedure).
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. In an aspect, the apparatus may receive a set of configurations for an EPDCCH that are tied to a set of configurations received for a PDSCH. The apparatus may then receive and process the EPDCCH based on at least one configuration from the set of configurations for the EPDCCH. In another aspect, the apparatus may determine at least a first and second resource set configured for a control channel and may determine a common set of aggregation levels for the first and second resource sets. The apparatus may further determine first rate-matching parameters for the first resource set and second rate-matching parameters for the second resource set, and may process the control channel using the common set of aggregation levels and the first and second rate-matching parameters.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. In an aspect, the apparatus establishes a first and/or second communication link with at least a first cell. The first communication link may be for receiving transmissions and the second communication link may be for sending transmissions. The apparatus performs a handover of one of the first and second communication links to at least a second cell. The apparatus determines a value of a parameter after the handover is performed based on a value of the parameter prior to the handover. In another aspect, the apparatus establishes a first and/or second communication link with at least a first cell. The first communication link may be for receiving transmissions and the second communication link may be for sending transmissions. In such aspect, a virtual cell ID is reconfigured for one of the first and second communication links.
Abstract:
A method of wireless communication is presented for an enhanced new carrier type cell. The method 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.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. In one configuration, the apparatus may be a UE. The apparatus may receive a message (e.g., via an ePCFICH) from an eNB and may process an ePDCCH using the message. The apparatus may receive a message via an ePCFICH indicating resources for ePDCCH, the ePDCCH being a localized ePDCCH and/or a distributed ePDCCH and process the ePDCCH using the message. The apparatus may receive an ePCFICH from an eNB, where the ePCFICH is a function of at least a PCI or a virtual cell identifier. The apparatus may process an ePDCCH using a default set of resources when an ePCFICH is not detected. The apparatus may receive an ePCFICH value and may determine either a starting symbol index for an ePDCCH or one or more ePDCCH resource sets based at least on the ePCFICH value.