摘要:
Systems and methods are described for indicating a range for which HARQ feedback is to be transmitted for sidelink V2X communications. A TX UE receives from a gNB an RRC message with an IE that describes a communication range. The communication range is used by a RX UE when the TX UE transmits a groupcast PSSCH and PSCCH to the RX UE to determine whether or not to send HARQ feedback in response to the TX UE transmission. The RX UE receives the communication range from the gNB or the TX UE signals the communication range in the SCI of the PSCCH. If the TX UE sends a TB in which multiple DRBs with different communication ranges are used for the PDU, the SCI indicates that either the maximum or minimum communication range is to be used.
摘要:
Embodiments of a Next Generation Node-B (gNB) and methods of communication are generally described herein. The gNB may be configurable to operate as a source gNB. The gNB may be configured with logical nodes including a gNB central unit (gNB-CU) and a gNB distributed unit (gNB-DU). The gNB-CU may comprise a gNB-CU control plane (gNB-CU-CP) for control-plane functionality, and a gNB-CU user plane (gNB-CU-UP) for user-plane functionality. When a handover of a User Equipment (UE) from the source gNB to a target gNB is performed, the gNB may transfer, from the gNB-DU to the gNB-CU-UP, a downlink data delivery status (DDDS) message to indicate that the gNB-CU-UP is to stop transfer, to the gNB-DU, of downlink data intended for the UE.
摘要:
Communication systems may benefit from signaling for resource mapping. For example, third generation partnership project (3GPP) long term evolution advanced (LTE-Advanced) may benefit from signaling for enhanced downlink control channel (ePDCCH) resource mapping in support of coordinated multipoint (CoMP) transmission.
摘要:
The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for aggregation of a new carrier type by configuring PCC (for PCell) and SCC (for SCell) bandwidths to be overlapped or at least partially overlapped and by control signaling, e.g., using PDCCH and/or E-PDCCH, for scheduling of data resources on SCC thus simultaneously serving legacy and non-legacy UEs, e.g., in LTE-A systems.
摘要:
The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for aggregation of a new carrier type by configuring PCC (for PCell) and SCC (for SCell) bandwidths to be overlapped or at least partially overlapped and by control signaling, e.g., using PDCCH and/or E-PDCCH, for scheduling of data resources on SCC thus simultaneously serving legacy and non-legacy UEs, e.g., in LTE-A systems.
摘要:
An apparatus, a method, and a computer-readable storage medium. The apparatus is to encode or decode a radio resource control (RRC) message from a NR evolved Node B (gNB) including at least one of: one or more configured scheduling radio network temporary identifiers (CS-RNTIs) including one of: one CS-RNTI to activate, deactivate or retransmit a semi-persistent scheduling (SPS) grant for unicast downlink (DL) transmission to the UE, or a plurality of CS-RNTIs to activate, deactivate or retransmit a respective plurality of SPS grants for multicast DL transmission to a plurality of UEs including the UE; or a semi-persistent scheduling configuration message SPS-Config including parameters defining an index of associated CS-RNTI SPS-ConfigIndex including a cs-RNTI-identification (cs-RNTI-id) parameter and downlink scheduling PDSCH data scrambling identifications, the downlink scheduling PDSCH data scrambling identifications including a parameter dataScramblingIdentityPDSCH, and an optional parameter dataScramblingIdentityPDSCH2.
摘要:
Disclosed are UE-feedback techniques to support the adaptive DMRS transmission. A UE and eNB support adaptive DMRS transmission in which an eNB adjusts (i.e., selects) a DMRS pattern based on information describing channel conditions perceived by the UE. The UE may explicitly provide the channel conditions, or implicitly provide them by selecting a desired DMRS pattern.
摘要:
Communication systems may benefit from signaling for resource mapping. For example, third generation partnership project (3GPP) long term evolution advanced (LTE-Advanced) may benefit from signaling for enhanced downlink control channel (ePDCCH) resource mapping in support of coordinated multipoint (CoMP) transmission.
摘要:
A user equipment UE reports its UE-specific channel quality to the network. The network uses this to narrow a search space in which the UE looks for its downlink control signaling. In one embodiment the search space is defined by downlink signaling the network sends. The width of the search space may also select between types of downlink control signaling (for example, between PDCCH and E-PDCCH). In the specific examples described the poorest channel qualities result in the whole-bandwidth PDCCH being used while better channel qualities result in progressively narrower search spaces to look for an E-PDCCH.
摘要:
A first noise variance is determined for a signal received on a first diversity branch of a receiver, and a second noise variance is determined for a signal received on a second diversity branch of the receiver. The signal received on the second diversity branch is scaled as a function of a ratio of the first noise variance and the second noise variance. A received signal is then estimated by combining the signal on the first diversity branch with the scaled signal on the second diversity branch. In this manner reasonable complexity is used to process diversity signals that exploits the difference in noise variation at the different receive diversity branches, without requiring matrix inversion and without having to assume the same noise variation across the diversity receive branches. Methods, apparatuses and computer programs are detailed operable in HSDPA and other systems.