摘要:
The present invention relates to a method, arrangement and computer-readable medium for optimizing code utilization in a code division multiple access (CDMA) communication network comprising a first communication network entity (10), a second communication network entity (15) connected to said first communication network entity over a communication interface and one or more user equipments (18) transmitting data using a scrambling code to said second communication network entity (15) over a radio interface on an uplink channel (14). Firstly, in what type of radio environment said one or more user equipments are is identified. Secondly, a traffic activity over the radio interface is measured. Thereafter, when and how to use a secondary scrambling code is determined based on the type of radio environment and traffic activity.
摘要:
A method and arrangement for enabling communication of data between a UE and a first base station in a cellular communication network further comprising the second base station, and the second base station is connected to the first base station via a communication interface A scheduling request is received 800 from the first base station. The scheduling request is based on a suggested scheduling which is determined by the first base station, and the suggested scheduling concerns the communication of data. Scheduling information is determined 802 based on the scheduling request, and the scheduling information is transmitted 804 to the UE. By determining a suggested scheduling in a micro base station, but transmitting scheduling information from an overlaying macro base station, local awareness of communication conditions may by applied, and interferences from neighbouring micro base stations may be decreased.
摘要:
Disclosed herein is a first network node and a method in a first network node for selecting a transport format among a plurality of available transport formats for communicating information with a second network node via a wireless link, which transport formats are such that a first transport format has a first maximum capacity and all the other transport formats have a higher maximum capacity in an increasing order. The method comprises the steps of: obtaining a quality indicator, which quality indicator indicates the current channel quality of the wireless link; determining a throughput indicator, which throughput indicator indicates the throughput format being available at the obtained quality indicator; calculating a switching value based on the quality indicator and the throughput indicator; switching to the second transport format when the quality indicator indicates that the switching value is reached or exceeded with respect to the second transport format; sending a notification to the second node, which notification indicates the switch to the second transport format.
摘要:
Method and arrangement (600) in a first network node (120-1), serving a first cell (130-1), for forming a coordination group for coordinating multipoint wireless communication. The method comprising determining (502) interference within the first cell (130-1). Also, the method comprises identifying (503) a second network node (120-2), which is either transmitting radio signals causing the interference, serving a user equipment (110-1), which transmits radio signals causing the interference, or being the intended recipient of radio signals causing the interference. Additionally, the method comprises transmitting (504) a token to the identified second network node (120-2), inviting it to coordinate the wireless communication. Furthermore, in addition, if acceptance is received, the method comprises forming (505) a coordination group together with the second network node (120-2), and coordinate the wireless communication.Further, a method and arrangement (800) in a second network node (120-2) is presented.
摘要:
An object of the present invention is to provide a mechanism for controlling a repeater that is less costly and more flexible. The objective is achieved by a method in a control unit (150) for controlling a repeater (100) being comprised in a radio access network (110). The control unit sends a repeater control message to the repeater (100). The repeater control message is tunneled as ordinary data communication via an available radio communication channel (160) within the radio access network (110). The repeater control message is configured to control the repeater (100).
摘要:
The present invention relates to a base station and a method in a mobile communication network comprising means for transmitting information to User Equipments (UEs), on a first channel and means for transmitting data packets to said UEs on a second channel. The timing of the first channel and second channel is overlapping, and the base station comprises means for setting individual power levels of the first channel for each scheduled UE. The base station according to the present invention comprises means for setting the power level of the second channel for a first scheduled UE based on the power level setting for the first channel for at least a subsequently scheduled second UE based on an early UE scheduling decision.
摘要:
The object of the present invention is to perform an enhanced prediction technique. The object is achieved by a method in a base station comprised in a radio access network. The base station is adapted to communicate with at least one user equipment, the method comprises the steps of receiving a sequence of CQI values sampled at the times t=1, . . . , n, from one or more of the at least one user equipments; estimating for each of the received specific CQI value k, the conditional expectation of the CQI value at time t+d, given the specific CQI value k at time t; and obtaining a predicted CQI value for the specific CQI value k, which predicted CQI value is the estimated conditional expectation of the CQI values at a time t+d for the specific CQI value k. Publ.
摘要:
An object of the present invention is to provide a mechanism for handling a handover in a more efficient way. The invention relates to a method in a mobility controller (180) in a radio access network for preparing a handover. The method comprises the following steps to be taken during data transmission between a mobile terminal (140) and a source base station (120), before the handover: Sending a request to a candidate base station (122), which request aims at measuring and reporting timing alignment to be used by the mobile terminal (140) when communicating with the destination base station (122) after the handover, if the candidate base station becomes the destination base station (122) after the handover; receiving a report from the destination base station (122) comprising said requested timing alignment; and when the destination base station (122) is selected among the at least one candidate base stations, sending a message to the mobile terminal (140) to use said timing alignment received from the destination base station (122) when communicating with the destination base station (122) after the handover.
摘要:
According to the teachings presented herein, wireless communication network interference is reduced by sending handover measurement information from mobile stations in conjunction with sending uplink scheduling requests, and by correspondingly making combined handover and uplink resource scheduling decisions. In this context, the combined decision considers both the handover measurement information and the uplink scheduling request, and determines whether a serving cell grants or denies the request and whether handover from the serving cell to a neighboring cell is or is not initiated for the mobile station. The combined determination provides for timely handover of the mobile station, such as where the mobile station is operating near a cell edge and issues an uplink scheduling request to its currently serving cell.
摘要:
A technique for assigning transceiver devices to transmission resources for inter-cell interference coordination in a heterogeneous cellular communication network is described. The network comprises a first cell layer having a first cell associated with a first transmission resource and a second cell layer having a second cell associated with a second transmission resource disjunctive from the first transmission resource. In a method implementation, the technique comprises performing a first selection procedure to select a first set of transceiver devices served in the first cell based on the potential of causing interference to transceiver devices served in the second cell, performing a second selection procedure to select a second set of transceiver devices served in the second cell based on the potential of being sensitive to interference from transceiver devices served in the first cell, and assigning the first set of transceiver devices to the first transmission resource and the second set of transceiver devices to the second transmission resource.