摘要:
A cellular wireless internet access system which operates in the 2.5 to 2.68 GHz band and which must comply with complex government regulations on power levels, subscriber equipment and interference levels yet which provides high data rates to users and cell sizes of 1 ½ miles radius or more from base stations with subscriber equipment and antennas mounted indoors. Such base stations are mounted low and use spread-spectrum transmission to comply with interference rules with respect to adjacent license areas. An unidirectional tear-drop coverage pattern is used at multiple cells to further reduce interference when required. Time division duplex is used to allow the system to operate on any single channel of varying bandwidth within the 2.5 to 2.68 GHz band. Backhaul transmission from base stations to the Internet is provided using base station radio equipment, operating either on a different frequency in the band or on the same frequency using a time-division peer-to-peer technique. Different effective data rates are provided by a prioritization tiering technique.
摘要:
A network element (for providing multimedia broadcast multicast services (MBMS) over a communication system that comprises a broadcast multicast service centre (BM-SC) wherein the network element comprises logic for allocating broadcast control plane traffic to at least one first radio network control entity dedicated to handle control plane traffic and allocating broadcast data plane traffic to at least one second radio network control entity dedicated to handle data plane traffic.
摘要:
A mobile communication device comprises receiver circuitry operable to receive broadcast real-time media data over a communication interface, and signal processing logic operable to extract real-time media content from the broadcast real-time media data, and output the extracted real-time media content via a user interface of the mobile communication device. In response to determining a partial loss of data for the broadcast real-time media data, the signal processing logic is operable to retrieve stored media content from a memory element of the mobile communication device, and output the retrieved media content via the user interface of the communication device.
摘要:
A method of scheduling an uplink (UL) data packet on a packet data network (PDN) connection of at least one radio bearer by a wireless communication unit comprises receiving, by the wireless communication unit, a signalling message comprising at least one scheduling priority parameter assigned to at least one uplink radio bearer, wherein the at least one scheduling priority parameter is based on at least one characteristic of the PDN connection that the radio bearer belongs to. The method further comprises determining, from the at least one scheduling priority parameter, at least one user transmission priority level associated with at least one PDN connection of at least one radio bearer; and scheduling at least one uplink data packet transmission in response to the at least one user transmission priority level.
摘要:
A communication network element (136) comprises traffic scheduler logic capable of scheduling transmission of a first category of queued traffic (220) across a backhaul interface (158) in accordance with a rate control value (210). The communication network element further comprises traffic manager logic (250) capable of scheduling transmission of a second category of queued traffic (260) across the backhaul interface (158) in accordance with a determined backhaul bandwidth allocation, the backhaul bandwidth allocation being based on a determination of available bandwidth across the backhaul interface not required for scheduled first category traffic.
摘要:
A communication unit comprises a receiver for receiving a composite communication signal that comprises a desired signal and at least one asynchronously received interfering signal. The receiver comprises detector logic arranged to detect and process the composite communication signal as if the at least one asynchronously received interfering signal were synchronously received with the desired signal.
摘要:
A cellular communication system comprises a first communication network arranged to use a single cell identifier reuse pattern; a second communication network comprising a cluster of communication cells and arranged to use a common cell identifier reuse pattern for broadcast transmissions. The cellular communication system further comprises management logic (146) having broadcast mode logic (150) operably coupled to at least the second communication network; and a plurality of wireless serving communication units operably coupled to the management logic. The broadcast mode logic (150) applies the same common cell identifier to be used by the plurality of wireless serving communication units in transmitting broadcast communications across the cluster of communication cells in the second network.
摘要:
An apparatus for use in allocating resource in a wireless communication system, where the apparatus comprises mapping logic arranged to map one or more services to individual radio bearers of a plurality of radio bearers; reporting logic arranged to indicate buffer occupancy for the plurality of radio bearers; and prioritization logic arranged to prioritize the allocated resource across multiple wireless communication units on a radio bearer basis.
摘要:
A wireless communication system comprises a plurality of communication networks. A first wireless subscriber communication unit comprises first signal processing logic arranged to support unicast communication in a first communication network. A second wireless subscriber communication unit comprises second signal processing logic arranged to support unicast communication in a second communication network. At least one wireless broadcast communication unit comprises a transmitter and broadcast signal processing logic, operably coupled to the transmitter, and arranged to broadcast communication in a third communication network. The first wireless subscriber communication unit and second wireless subscriber communication unit are capable of simultaneously receiving broadcast communication on the third network together with their respective unicast communication on their respective first or second communication network.
摘要:
A method and arrangement for automatic frequency correction in UTRA TDD mode, having a first stage (500) for frequency lock in idle mode, and a second stage (600) for receiving a channel estimate from beacon function (mx1), receiving a channel estimate from at least one other physical channel (mx2), and receiving output from a primary synchronisation code correlator (mx0,pc1,pc2), and for producing therefrom signals (X,Y,N) for use in frequency correction. By utilising first and second partial correlation values (pc1,pc2) which are balanced, DC offset effects may be substantially removed. This provides the following advantage of significantly improving performance at low levels of SNR, and removal of DC offset effects provides immunity to DC offsets arising from imperfections in hardware.