For a wireless network, a tuning system in which mobile phones using the network are routinely located. With the location of the mobile phones identified, load adjustments for the system are easily accomplished so that the wireless network is not subject to an overload situation. Ideally the location of the mobile phones is accomplished whether the mobile phones are transmitting voice data or not.

Machine for Providing a Dynamic Database of Geographic Location Information for a Plurality of Wireless Devices and Process for Making Same

A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.

Ofdma with adaptive subcarrier-cluster configuration and selective loading

Multi-carrier communications with adaptive cluster configuration and switching

Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter-sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station, channel gains for the serving and neighbor base stations, and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station observing high interference and/or if the current transmit power level is higher, and vice versa. The intra-sector interference is maintained within an acceptable level by limiting a received SNR for the terminal to be within a range of allowable SNRs.

Power control for a wireless communication system utilizing orthogonal multiplexing

An apparatus and process for allocating carriers in a multi-carrier system is described. In one embodiment, the process comprises determining a location (E, D, C, B, A; fig. 6) of a subscriber (520) with respect to a base station (510), selecting carriers from a band of carriers to allocate to the subscriber (520) according to the location of the subscriber with respect to the base station (510), and allocating selected carriers to the subscriber (520).

Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems

An efficient and effective power control in a mobile communications system is provided that adapts to rapidly changing radio transmission conditions in varying and often unpredictable situations The value of a signal parameter detected from a signal received by a radio transceiver is compared with a desired signal parameter value, and a difference is determined A transmit power control command is sent to the radio transceiver and may instruct, for example, an increase or decrease in the level of radio transmit power Included with the transmit power control command is a power control indicator indicating whether a first or a second type of power control adjustment should be used by the radio transceiver depending upon the determined difference In one example embodiment, the power control indicator is a single flag bit A first value indicates that the first type of power control adjustment should be used; the second value indicates that the second type of power control adjustment should be used In any event, the power control indicator itself does not include specific details of the first or second type of power control adjustment Because only the indicator is sent (and not the details), signaling overhead and bandwidth consumption related to frequently sent power control commands are kept to a minimum The specific details of the first and second power control adjustments are initially stored in to the radio transceiver Such details may be updated when desirable, but the frequency of such updating is likely to be infrequent Alternatively, a power control indicator may be communicated using techniques other than adding one or more flag bits to a fast transmit power control message to effect a change in power control type as long as signaling overhead is not significantly increased

Adaptive power control in a mobile radio communications system

Disclosed are methods, devices and computer programs that enables a controlled activation and/or deactivation of multiplication/duplication transmissions where packets transmitted to a wireless device from a network node is multiplied/duplicated and transmitted from several network nodes to the wireless device. The methods, devices and computer programs are based on a quality indication that represents for the quality of the connections between a wireless device and different network units. Based on a quality indication obtained from the wireless device the network node(s) may initiate or terminate a multiplication/duplication transmission mode where packets are transmitted to the wireless device from several network nodes.

Activation and deactivation of multiplication transmission

There is provided a method of operating at least one network unit in a wireless communication system, wherein the wireless communication system comprises a first network unit and a second network unit that are both connected to a third network unit using a first connection, between the first network unit and the third network unit, and using a second connection, between the second network unit and the third network unit, wherein packets comprising the same information are transmitted over both the first connection and the second connection. The method comprises the first network unit receiving information from the third network unit indicating packets received by the third network unit from the first network unit over the first connection, and transmitting an indication to the second network unit enabling removal of packets from one or more transmission buffers of the second network unit corresponding to the indicated packets received by the third network unit from the first network unit over the first connection.

Enabling efficient handling of redundant packet copies in a wireless communication system

Activation and deactivation of duplication transmission

A first wireless device, a second wireless device, a network node and respective methods performed thereby for performing random access are provided. The first wireless device, the second wireless device and the network node are operable in a wireless communication network. The method performed by the first wireless device comprises receiving (105) from the network node, a configuration that the first wireless device and one or more second wireless devices are part of a group, and that the first wireless device shall act as a coordinator for the group, wherein wireless devices in the group are capable of direct mode communication, D2D; and receiving (120) one or more resource requests from respective one or more second wireless devices in the group, wherein each one of the resource requests are received over a D2D link, between the first wireless device and the respective one or more second wireless devices. The method further comprises transmitting (160) a random access request to the network node, which random access request relates to requested resources according to the received one or more resource requests from the group.

Ericson Mårten

Papers

Adaptive power control in a mobile radio communications system

Activation and deactivation of multiplication transmission

Enabling efficient handling of redundant packet copies in a wireless communication system

Activation and deactivation of duplication transmission

A First and Second Wireless Device and a Network Node, and Methods Performed Thereby, for Performing a Random Access Procedure