Abstract:
Techniques are described for setting the Physical Downlink Control Channel search spaces for component carriers. If any component carrier is de-activated, the Carrier Indicator Fields (CIF) of remaining activated component carriers can be set to consecutive values. The User Element can utilize its identifier to determine the starting point Control Channel Elements in each subframe. The locations of Control Channel Elements for a component carrier can be determined based on its CIF. Accordingly, search spaces for different component carriers can potentially be closely spaced but not overlap.
Abstract:
Group size indications may be distributed from a base station to a mobile station in the form of assignment-advanced-MAP transmit control signaling. The signaling control information may be sent to a station, such as a mobile station, using a table that indicates the size of a group based on coding rates, such as one-half and one-quarter coding rates. Waste may be controlled by determining a size based on using an unoccupied resource in a group that is adjacent to data resource for data transmission by the station. However, an unoccupied resource in a group that is not adjacent to a data resource is not used for data transmission and is, therefore, wasted.
Abstract:
Embodiments of methods and apparatus for resource allocation for physical uplink control channels are described herein. Other embodiments may be described and claimed.
Abstract:
An apparatus and method for the flexible configuration of uplink and downlink ratio by exchanging information relating to user traffic pattern among eNodeBs in a wireless communications network using the X2 interface is disclosed herein. In one embodiment, the information exchanged among the eNodeBs comprises downlink subframe transmission power information and uplink subframe reception power information. In another embodiment, the information exchanged among the eNodeBs comprises downlink subframe loading information and uplink subframe loading information. The exchange of such information facilitates implementation of a flexible or dynamic configuration of the uplink and downlink ratio.
Abstract:
An apparatus of an enhanced Node B, the apparatus comprising: a memory; and processing circuit comprising: means for decoding an overload indication and a first uplink/downlink (UL/DL) configuration received from a neighboring eNB; means for adapting a second UL/DL configuration for at least one user equipment (UE) responsive to the received overload indication and first UL/DL configuration; means for encoding the adapted second UL/DL configuration in downlink control information (DCI) of a physical downlink control channel (PDCCH); meas for masking a cyclic redundancy check (CRC) for the PDCCH with a radio network temporary identifier (RNTI) reserved for signaling UL/DL configurations; a means for encoding the PDCCH for transmission to the at least one UE; wherein the memory is configured to store the adapted second UL/DL configuration.
Abstract:
An apparatus and method for providing configuration information relating to an extension carrier within a wireless communications network is disclosed herein. In one embodiment, each enhanced node B (eNodeB) transmits the configuration information within the downlink subframes of at least one radio frame, wherein the configuration information is transmitted on the downlink shared channel (DL-SCH) included in the radio frame. In another embodiment, each eNodeB transmits the configuration information within a radio resource control (RRC) signaling included in at least one radio frame to select ones of the user equipments (UEs) in response to the system load relative to the select UE's request.
Abstract:
Technology for performing multiple timing advances in a carrier aggregation communication system is disclosed. A method comprises communicating a random access preamble from a UE to an eNodeB via a PCell associated with a selected component carrier of the carrier aggregation. A Random Access Response (RAR) is received at the UE from the eNodeB for the PCell. The RAR contains a timing advance adjustment instructing the UE to adjust a timing of a PCell wireless communication. A request is received at the UE to adjust a timing of an SCell communication. A random access preamble is communicated to the UE via the SCell. An RAR is received at the UE from the eNodeB for the SCell to adjust a timing advance of the SCell wireless communication.
Abstract:
Briefly, in accordance with one or more embodiments, a base transceiver station such as an Enhanced Node B allocates a first bandwidth for operation with a first set of remote devices which may comprise user equipment (UE), and allocates at least one or more bandwidth segments outside of the first bandwidth for operation with a second set of remote devices which mag comprise user equipment (UE). Remote devices of the first set are capable of operating within the first bandwidth, and remote devices of the second set are capable of operating within the first bandwidth and within the bandwidth segments outside of the first bandwidth. The devices of the first set comprise legacy devices, and devices of the second set comprise advanced devices.