Cisco Technology, Inc.

Sushanth Chandappa Kulal

Shashank Misra

Vikram Chandrasekhar

Kedar Shirali

Ritesh Madan

Qing Zhao

Madhur Raj Nagesh Shetigar

This application pertains to systems, apparatus and methods for decreasing interference in wireless networks caused by User Equipments (UEs) entering compressed mode. Under certain generally accepted communication protocols, a UE can transmit at a higher power relative to normal transmissions when it enters compressed mode. These high power transmissions can cause interference both for UEs within the same cell (e.g., small cells or macrocells) as well as for UEs in neighboring cells. This interference can be minimized by using the presently disclosed systems, apparatus and methods to schedule time slots for UEs to go into compressed mode such that the distance in time between any two UEs going into compressed mode across one or more neighboring cells is maximized. By spreading out the interference effect of UEs going into compressed mode over time, overall interference in the wireless network can be decreased.

Compressed mode intra/inter cell interference mitigation

An example method is provided in one example embodiment and may include grouping a plurality of user equipment served by a serving cell radio into one or more groups based on an approximate location of each of the plurality of user equipment and a proximity of each of the plurality of user equipment in relation to each other; selecting a master user equipment for each group; receiving inter-frequency measurement information or inter-Radio Access Technology (RAT) measurement information associated with one or more neighboring cell radios; receiving a first service request for a first user equipment of a particular group; and selecting a particular neighboring cell radio for a service hand-out of the first user equipment based, at least in part, on the first service request and inter-frequency measurement information or inter-RAT measurement information received from a particular master user equipment for the particular group.

System and method to facilitate service hand-outs using user equipment groups in a network environment

Embodiments include starting a first timer if a queue state associated with a user equipment (UE) is estimated to equal zero bytes of data and if a last buffer status report received from the UE indicated the queue state to be greater than zero bytes of data, sending a control message granting uplink resources to the UE if the first timer expires, and determining the queue state associated with the UE based, at least in part, on a response to the control message. In specific embodiments the first timer expires if neither a scheduling request nor a buffer status report is received during a first timer interval after the first timer is started. Further embodiments include stopping the first timer if a scheduling request or a buffer status report is received before the first timer expires.

Timer-based scheme for user equipment queue state estimation

Embodiments of the present disclosure include a method of resource allocation. The method includes assigning resources intended for a control channel of a mobile network to multiple resource groups. At least one resource group may include multiple resources, where the resources have at least an associated periodicity and an associated delay tolerance. The assignment may be based on the delay tolerances of the resources. The method further includes determining a composite delay tolerance of the resource groups based on the corresponding delay tolerances of the resources in the resource group. The method further includes reserving resources associated with the control channel for the resource groups based on the composite delay tolerance of the resource groups. The method further includes establishing the control channel with a user equipment (UE), where the control channel is established using the reserved resources.

Resource allocation for control channel

An example method for facilitating automatic neighbor relation in a wireless telecommunication network environment is provided and includes initiating a fake handover with a target Evolved Node B (eNB) in a Long Term Evolution (LTE) wireless network environment over an S1 interface with a mobility management entity (MME), receiving a handover command message from the MME including neighbor cell information associated with the target eNB, canceling the fake handover, and updating a neighbor relations table (NRT) with the neighbor cell information. In various embodiments, the neighbor cell information includes information associated with the target eNB not communicated over an X2 interface, such as system control information communicated in a broadcast control channel. The method may further include receiving a measurement report from a user equipment with information of neighboring cells and initiating the fake handover if any neighboring cell included in the measurement report is missing from the NRT.

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Mangalore, India

Sushanth Chandappa Kulal