Abstract:
An uplink signal-to-interference ratio for each of multiple mobile radio terminal connections supported in a cell in a cellular communications system is estimated. A signal-to-interference ratio error is determined for selected ones of the estimated uplink signal-to-interference ratios. One or more signal-to-interference ratio errors are identified that exceed a signal-to-interference ratio error threshold. An instability indicator associated with the cell is determined based on the one or more identified signal-to-interference ratio errors. A load control decision and/or a decision for scheduling one or more uplink mobile radio transmissions in the cell may then be made based on the instability indicator, e.g., to prevent a transmission power rush in the uplink in the cell and/or to efficiently use available resources for uplink transmissions.
Abstract:
A method, network node, and base station for communicating with mobile user terminals over an air interface. A scheduler allocates and de-allocates resources in the node or base station for communicating with a user terminal. The scheduler includes a delayer for delaying the de-allocation of an allocated resource if delayed de-allocation is needed.
Abstract:
In a telecommunications network, a method and apparatus for allocating channels makes signal quality measurements for channels that are in use or available for use and for channels that may become available for use. Already selected channels (i.e., channels in use or available for use) that exhibit poor signal quality characteristics are exchanged with candidate channels (i.e., channels that may become available for use) that exhibit better signal quality characteristics to thereby improve the overall signal quality of the network.
Abstract:
A radio access network (20) comprises a radio network controller (26) and a radio base station (28). The radio network controller (26) is configured to perform admission control and to allocate resources of a cell. The radio base station (28) is configured to determine load/congestion on a high speed shared channel and to generate an indication of the load/congestion for transmission to the radio network controller. In some example embodiments and modes, at least one of the radio network controller and the radio base station is configured to allocate at least some of the resources for the high speed shared channel to support a guaranteed service and also to allocate at least some resources to support a non-guaranteed service. In some example implementations of this aspect, a user(s) of the non-guaranteed service is permitted to use the resources up to a reserved resource level of resources. According to another non-limiting aspect of the technology, the radio base station is further configured to generate a recommended action for dealing with the load/congestion.
Abstract:
Radio resources like spreading codes and transmission power are optimally allocated to various different types of radio channels supported in the cell including a specialized channel like a high-speed shared channel. One or more measurements made at the base station are provided to the radio resource manager. Such measurements include other-channel power, high speed shared channel code usage, high speed shared channel transport format usage, average active load on the high speed shared channel, empty buffer, excess power, and similar parameters that relate to a high speed shared channel. One or more of these reported measurements may then be used to access, allocate, and/or regulate resources associated with the base station's cell.
Abstract:
A telecommunications system and method is disclosed for efficient and flexible usage of bandwidth within a code division multiple access (CDMA) cell (210, 220, 230). Multiple carriers (250, 260) can be included within a CDMA cell (210, 220, 230), in which a different number of carriers can be allocated to downlink transmissions and uplink transmissions. In addition, a mobile station (MS) (150) can allocate downlink bandwidth from different carriers (250, 260) to contribute to a Traffic channel, making it possible to form high user bit-rates, e.g., 4 Mbps. A CDMA cell (210, 220, 230) can contain a Primary carrier (250) with all channel types and at least one Secondary carrier (260) with only dedicated channels and optionally power controlled common channels. The Primary carrier (250) has a primary scrambling code (270) and zero or more secondary scrambling codes (280) associated therewith, while the Secondary carrier (260) has one or more secondary scrambling codes (280) associated therewith.