摘要:
Method and arrangement in a mobile terminal for predicting future data communication performance of transmissions between a base station and the mobile terminal. The base station and the mobile terminal are comprised in a wireless communication system. The method comprises receiving information from the base station, concerning the relation between distribution characteristics and the performance of established data communications via the base station, comparing the own distribution characteristics of the mobile terminal with the received information, determining the own predicted data communication performance based on the made comparison between the own distribution characteristics and the received information, and displaying the determined own predicted data communication performance on a display of the mobile terminal. Also, a method and arrangement in a base station for assisting a mobile terminal in predicting future data communication performance of transmissions is comprised.
摘要:
Method and arrangement in a mobile terminal for predicting future data communication performance of transmissions between a base station and the mobile terminal. The base station and the mobile terminal are comprised in a wireless communication system. The method comprises receiving information from the base station, concerning the relation between distribution characteristics and the performance of established data communications via the base station, comparing the own distribution characteristics of the mobile terminal with the received information, determining the own predicted data communication performance based on the made comparison between the own distribution characteristics and the received information, and displaying the determined own predicted data communication performance on a display of the mobile terminal. Also, a method and arrangement in a base station for assisting a mobile terminal in predicting future data communication performance of transmissions is comprised.
摘要:
A method is disclosed for use in a heterogeneous telecommunications system of the kind comprising a macro base station and a low-power base station, the low-power base station having a coverage which is extendible by range expansion, RE, to serve a user equipment which would otherwise have been served by the macro base station. According to the method, which is performed in either of the macro base station or the low-power base station, information about radio conditions of the user equipment at least with respect to the macro base station is obtained (310). Based on the obtained information, it is determined (320) whether a criterion for conditional range expansion is satisfied, said criterion being related to the uplink transmission power of the user equipment to the macro base station. Accordingly, range expansion is applied (330) for the user equipment only when the criterion is satisfied. A corresponding base station, telecommunications system and computer readable storage medium are also disclosed.
摘要:
A method for cell selection comprises obtaining of user equipment specific information for a user equipment that is present in a first cell of a first base station. The user equipment specific information comprises information of a prevailing radio situation and information of a present decoding performance. A present capability of the user equipment for handling increased interference and a measure of a cell selection offset required to cover the user equipment by a second cell is estimated from the user equipment specific information. It is decided on modifying a cell selection offset for handover between the first cell and the second cell, in dependence on the estimated present capability of the user equipment for handling increased interference and the cell selection offset required to cover the user equipment by the second cell.
摘要:
A method is disclosed for use in a heterogeneous telecommunications system of the kind comprising a macro base station and a low-power base station, the low-power base station having a coverage which is extendible by range expansion, RE, to serve a user equipment which would otherwise have been served by the macro base station. According to the method, which is performed in either of the macro base station or the low-power base station, information about radio conditions of the user equipment at least with respect to the macro base station is obtained (310). Based on the obtained information, it is determined (320) whether a criterion for conditional range expansion is satisfied, said criterion being related to the uplink transmission power of the user equipment to the macro base station. Accordingly, range expansion is applied (330) for the user equipment only when the criterion is satisfied. A corresponding base station, telecommunications system and computer readable storage medium are also disclosed.
摘要:
A UE and a method therein for transmission power control of uplink transmissions are provided. The method comprises receiving, through signalling a configuration indicating at least one reference signal, RS, and a reference transmission power level for each indicated RS. The method further comprises measuring received power of the indicated at least one RS, and for each measured received power, determining a pathloss, PL, based on the measured received power and the reference transmission power level for each measured received power. The method further comprises determining an uplink transmission power based on at least one determined PL.
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:
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:
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.
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.