Abstract: Apparatus, and an associated method, by which to facilitate frequency channel allocation, and reallocation, in a radio communication system. Channel allocation and reallocation is effectuated to attain a desired statistical emission spectrum. Implementation is effectuated, for instance, in a WLAN system operable pursuant to the IEEE 802.11 standard but implemented in a 5 GHz frequency band.

Abstract: The base station of a cellular radio system is in radio communication with the mobile stations of the cellular radio system by using mutually essentially orthogonal channels. In order to control the use of the channels, said channels are divided into groups with different priorities, so that the base station uses primarily the channel group with the highest priority. Channels belonging to different priority groups are put to use in a selective manner as a response to the loading of the base station.

Abstract: In telecommunications networks, various kinds of information transfer occur where transmission periods are not transmitted. As a result of this, parts of the information packets contained in the concerned transmission periods are lost and the probability of loss of these information packets increases considerably. With the method according to the invention, the quality of information transfer is ensured in a telecommunications network where the information packet is coded and interleaved into at least two transmission periods. According to the invention, the method is characterized in that therein the transmission power of at least one transmission period related to the transmission of the same information packet is increased, when at least one transmission period is not transmitted.

Abstract: The invention relates to a method in a wireless communication system (1) comprising wireless terminals (MT1-MT4), a communication channel (CH) and at, least one access point (AP1, AP2) and access point controller (AC1, AC2). The method comprises the steps of activating at least one data transmission connection between the wireless terminal (MT1-MT4) and the access point (AP1), in which information is transmitted in packets, forming data frames (FR) for the transmission of the packets, supplementing said data frame (FR) with at least one item of error checking data, in whose formation at least a part of the information contained in the data frame (FR) is used, converting said data frames (FR) into signals to be transmitted on the communication channel, receiving signals transmitted on the communication channel and converting them into data frames, forming reference.

Abstract: The invention relates to a method in a wireless data transmission system (1) which comprises wireless terminals (MT1-MT4), at least a first access point (AP1) and a first access point controller (AC1), a second access point (AP2) and a second access point controller (AC2). In the data transmission, data frames are used. In the invention, two allocation strategies are defined of which two are selected at a time. From the data frames, a first starting point (TS11, TS21) and a second starting point (TS1n, TS2n) are determined. In order to select a strategy, it is examined whether there is other traffic on the channel. If other traffic can be detected, it is examined which allocation strategy is selected, and an allocation strategy which is different from that of the examined connection is selected for the connection to be set up. However, if traffic is not detected, it is possible to select the allocation strategy freely.

Abstract: The invention relates to a method in a wireless communication system (1) which includes wireless terminals (MT1-MT4) and at least one access point (AP1, AP2) and access point controller (APC1, APC2). At least one antenna configuration is determined for an antenna (30) of the wireless terminal (MT1-MT4). In the method, the antenna (30) of the wireless terminal (MT1-MT4) is used for receiving a radio signal and the strength of the radio signal received by the antenna (30) of the wireless terminal (MT1-MT4) is measured. A measurement message (HD1, D1) is formed of one or more measurements, which is transmitted from the wireless terminal (MT1-MT4) to the access point (AP1, AP2). Further in the method, data (UAC) about the antenna configuration during the measurement is added into the measurement message (HD1, D1).

Abstract: A cellular radio system comprises base stations and mobile stations. In order to execute handover, there is chosen a group of potential new base stations and estimated the carrier to interference ratio that each potential new base station included in said group could offer. The carrier to interference ratio can be estimated separately for real-time and for non-real-time connections and/or for uplink and downlink connections.

Abstract: A radio connection is adapted to an environment changing over the connection in a cellular radio system where the radio traffic between the base station and the mobile stations is arranged on a multiple access principle, according to a given frame structure (402). For a given radio connection between the transmitting device and the receiving device, there is reserved a given data transmission capacity in said frame structure. The receiving device measures the connection quality (103) during the connection, and on the bases of the measured connection quality, the size of the data transmission capacity (104, 110) reserved for said connection in said frame structure is changed.