摘要:
A method and a communication network node for satisfying detection miss probability and false detection probability requirements in a random access channel used by mobile stations (MS) for accessing a communication network system comprising radio base stations (BS) each serving at least one cell (19). The method includes optimizing a random access channel, wherein the method performs estimating detection miss probability (P m) in said cell, tuning random access parameters such that said estimated detection miss probability satisfies predetermined requirements, estimating a false detection probability (P f) in said communication cell (19), tuning said random access parameters such that said estimated false detection probability satisfies predetermined requirements, and tuning said random access parameters such that an extensive interference caused by mobile stations attempting random access in said communication cell is avoided.
摘要:
The present invention relates to a method and a communication network node for automatically tuning a PRACH configuration parameter in a communication network system comprising radio base stations each serving at least one cell and with which user equipments are communicating on uplink and downlink channels. The PRACH configuration parameter is used for defining the division of uplink resource blocks between PRACH and PUSCH. Load statistics on RACH and PUSCH are collected used for determining a number of RACH opportunities required per time unit. Then a new PRACH configuration parameter having said required number of RACH opportunities per time unit is selected which is replacing the old PRACH configuration parameter.
摘要:
A device obtains a service change associated with a cell in a radio network, and identifies helper cells in the radio network that need new random access channel (RACH) parameters due to the service change. The device also determines a RACH parameters configuration for the helper cells, and configures the helper cells with the determined RACH parameters configuration.
摘要:
The present invention relates to a method and a communication network node for automatically tuning a PRACH configuration parameter in a communication network system comprising radio base stations each serving at least one cell and with which user equipments are communicating on uplink and downlink channels. The PRACH configuration parameter is used for defining the division of uplink resource blocks between PRACH and PUSCH. Load statistics on RACH and PUSCH are collected used for determining a number of RACH opportunities required per time unit. Then a new PRACH configuration parameter having said required number of RACH opportunities per time unit is selected which is replacing the old PRACH configuration parameter.
摘要:
In one of its aspects the technology concerns a method of operating a telecommunications system comprising a serving radio base station and a candidate radio base station. The serving radio base station comprises a radio base station to which a wireless mobile station provides measurement reports. The serving radio base station and the candidate radio base station are different with respect to at least one of frequency and radio access technology. The method comprises the serving radio base station allowing the mobile station to obtain information broadcasted by the candidate radio base station. The information is either information for locating Cell Global Identity (CGI) of the candidate radio base station or the Cell Global Identity (CGI) itself of the radio base station. The mobile station obtains the information from the candidate radio base station during at least one reading gap. The reading gap is a time period in which the mobile station does not receive information from the serving radio base station.
摘要:
A method and a communication network node for satisfying detection miss probability and false detection probability requirements in a random access channel used by mobile stations (MS) for accessing a communication network system comprising radio base stations (BS) each serving at least one cell (19). The method includes optimizing a random access channel, wherein the method performs estimating detection miss probability (P m) in said cell, tuning random access parameters such that said estimated detection miss probability satisfies predetermined requirements, estimating a false detection probability (P f) in said communication cell (19), tuning said random access parameters such that said estimated false detection probability satisfies predetermined requirements, and tuning said random access parameters such that an extensive interference caused by mobile stations attempting random access in said communication cell is avoided.
摘要:
In a cellular radio system a message indicating a change of cell size can be transmitted to a number of affected cells, in particular, neighboring cells. The affected cells receiving such a message can be adapted to use the information in the message when determining self-optimization parameters used for control purposes. Hereby, better response times can be achieved without reducing noise sensitivity.
摘要:
A telecommunications system comprises a serving radio base station and a candidate radio base station which are different with respect to at least one of frequency and radio access technology. The serving radio base station comprises a radio base station to which a wireless mobile station provides measurement reports. A method comprises the serving radio base station allowing the mobile station to obtain information broadcasted by the candidate radio base station. The information is either information for locating Cell Global Identity (CGI) of the candidate radio base station or the Cell Global Identity (CGI) itself of the radio base station. The mobile station obtains the information from the candidate radio base station during at least one reading gap. The reading gap is a time period in which the mobile station does not receive information from the serving radio base station.
摘要:
A telecommunications system comprises a serving radio base station and a candidate radio base station which are different with respect to at least one of frequency and radio access technology. The serving radio base station comprises a radio base station to which a wireless mobile station provides measurement reports. A method comprises the serving radio base station allowing the mobile station to obtain information broadcasted by the candidate radio base station. The information is either information for locating Cell Global Identity (CGI) of the candidate radio base station or the Cell Global Identity (CGI) itself of the radio base station. The mobile station obtains the information from the candidate radio base station during at least one reading gap. The reading gap is a time period in which the mobile station does not receive information from the serving radio base station.
摘要:
The present invention relates to an arrangement, a communication network node and method for cell outage compensation in a communication network system comprising a plurality of communication network nodes (15a, 15b) communicating with user equipments (18), where each network node (15a, 15b) is serving at least one cell (19a, 19b), in which the user equipments (18) are situated, via two or more reconfigurable physical antennas (15a1, 15a2, 15b1, 15b2) configured according to an initial antenna parameter set. Cell outage is determined in a network node (15b). One of the reconfigurable physical antennas (15a2) of at least one cell (19a) is made temporarily available for compensation. The available antenna (15a2,) is prepared for compensation by reconfiguring one or more antenna parameters thereof in accordance with a compensating antenna parameter set. A new compensating cell (20) is transmitted from the prepared antenna (15a2). Upon cell recovery the compensating cell (20) is removed and the reconfigurable physical antennas (15a2) of the compensating cell (20) returned to the initial antenna parameter set.