摘要:
This document proposes soft activation and inactivation of (network) repeaters that are, for example, activated on an as-needed basis. With soft activation, repeater gain ramps upward at a controlled rate, thereby avoiding rapid changes in interference caused by the repeater. Likewise, with soft inactivation, repeater gain ramps downward at a controlled rate. Soft activation/inactivation results in more gradual changes in the interference contribution of the repeater, thereby improving the performance of interference-compensating radio receivers operating in proximity to the repeater.
摘要:
In accordance with one embodiment of the present disclosure, a method of operating a relay node includes receiving information, at the relay node, information identifying a plurality of subframes. The subframes represent time periods during which a base station may grant the relay node permission to transmit to the base station on a first frequency. The method also involves selecting one of the identified subframes to be used for a transmission between the relay node and a wireless terminal on the first frequency and transmits to the wireless terminal a scheduling grant granting the wireless terminal permission to transmit information on the first frequency during the selected subframe.
摘要:
The present invention relates to a method and apparatus for requesting scheduling of resources to be used for uplink communication of data in a communications system. If the repeated transmission by a user equipment of scheduling requests on an uplink control channel is determined to be unsuccessful, a random access transmission on a random access channel is initiated as a fallback procedure.
摘要:
Method and arrangement in a base station for adjusting a channel quality indicator value of a wireless transmission between the base station and a user equipment. The base station, the user equipment and a relay node are comprised in a multi-hop wireless communication system and adapted to intercommunicate in a first transmission mode and a second transmission mode. The method comprises sending a radio signal to be received by the user equipment, obtaining a measurement of the channel quality indicator value, determining if the transmission mode of the sent radio signal is different from the transmission mode of the obtained channel quality indicator value measurement, and adding a channel quality indicator offset value to the channel quality indicator value, if the transmission mode of the relay node is determined to be the first transmission mode while the channel quality indicator was measured and obtained in the second transmission mode.
摘要:
The present invention relates to allowing configuring CSI reporting (step S-224, 310) on radio resources that are allocated over a plurality of sub frames on Physical Uplink Shared Channel (PUSCH). Allocation of said radio resources (steps S-202, 404) can be performed by semi-persistent allocation or by using Transmission Time Interval (TTI) bundling. By using either semi-persistent scheduling or TTI-bundling as decided by an eNB (104, 204, 600) the UE (102, 202, 500) can be configured to report CSI (step S-224, 310) for a plurality of UL transmissions. By allocating radio resources by using semi-persistent scheduling, the signaling overhead, which can be substantial for dynamic scheduling of radio resources, decreases. By using TTI-bundling the coverage of the CSI-reports increases.
摘要:
An Uplink control channel resource Management Module (120, 130), referred to as “UMM”, and a method in the UMM for assigning, to a radio network node 110, uplink control channel resources, referred to as “UCCHR”, for use in a uplink control channel between the radio network node (110) and a communication device (160) are provided. The UMM obtains (210) resource allocation information, referred to as “RAI”, and generates (220) a resource allocation command, referred to as “RAC”, based on the RAI. The RAC indicates UCCHR to be used by the radio network node. Furthermore, the UMM provides (230) the RAC to the radio network node (110). Related methods and nodes to enable the UMM to assign UCCHR are also provided.
摘要:
In accordance with one embodiment of the present disclosure, a method of operating a relay node includes receiving information, at the relay node, information identifying a plurality of subframes. The subframes represent time periods during which a base station may grant the relay node permission to transmit to the base station on a first frequency. The method also involves selecting one of the identified subframes to be used for a transmission between the relay node and a wireless terminal on the first frequency and transmits to the wireless terminal a scheduling grant granting the wireless terminal permission to transmit information on the first frequency during the selected subframe.
摘要:
Automatically adjust the size of a Physical Uplink Control Channel, PUCCH, of an uplink communication subframe. In a particular embodiment, the size of a semi-static region of the PUCCH is adjusted. The adjustment is based on a utilization factor of the PUCCH over a time period. The adjustment can also be based on the connection factor (connections between the wireless terminals and the cell) and/or based on the utilization factor of a PUSCH (Physical Uplink Shared Channel). The result is an efficient resource utilization on the PUCCH, and a properly dimensioned PUCCH region.
摘要:
The present invention relates to a method and apparatus for user terminal and bearer identification that reduces the overhead for LTE relaying (layer 2 and layer 3), which will save radio resources on the backhaul link. Reduction in overhead is achieved by providing a more efficient mechanism for user terminal and bearer identification as compared to using GTP-u and associated UDP/IP headers.
摘要:
The present disclosure relates to a method and an access node 112 for reducing interference The access node 112 communicates with a user equipment 111 over a wireless access interface a i in a wireless communication network 100 The method comprises the actions of obtaining (S2) timing information indicative of one or more periods when a relay node 116 communicates with a donor node 112 over a wireless backhaul interface b h i, and identifying (S1) that the user equipment 111 is receiving a signal from the relay node 116 communicating with the donor node 112 over the backhaul interface b h I that is stronger than a predetermined threshold, and in response to identifying that the user equipment 111 is receiving a signal from the relay node 116 that is stronger than a predetermined threshold, prioritising (S3) communication between the access node 112 and the identified user equipment 111 via the access interface a i during the periods when the relay node 116 communicates with the donor node 112 over the backhaul interface b h i.