Abstract: A wireless serving communication unit comprises a signal processor, for receiving and processing a signal to be broadcast, and a number of transmitters operably coupled to the signal processor, for transmitting the broadcast signal in a plurality of sectorised cells to a wireless subscriber communication unit. The wireless serving communication unit comprises logic to replicate the processed signal into a plurality of replicated signals and logic introduce one or more delay(s) to one or more of the replicated processed signals, such that replicated broadcast signals having different delays are transmitted from a plurality of sectorised cells to one or more wireless subscriber communication unit.

Abstract: A method, communication system and communication unit for synchronisation for multi-rate communication by transmitting a signal (FIG. 4A) having a synchronisation portion at a first, predetermined chip rate and containing an indication of chip rate used for a further portion; receiving the transmitted signal, recovering the indication from the synchronisation portion at the first, predetermined chip rate, and recovering information in the further portion at the chip rate indicated by the indication. This provides improved efficiency in supporting multi-chip rates.

Abstract: A method of requesting a communication resource by a wireless communication unit operating in a wireless communication system. The wireless communication system provides for uplink and downlink channels. The method includes the steps of: allocating a dedicated communication channel to said wireless communication unit by a wireless communication serving unit; transmitting a communication resource request message (130) on said dedicated uplink channel by said wireless communication unit (110) to said wireless communication serving unit (120); and transmitting an access allocation message (140) to said wireless communication unit (110) from said wireless communication serving unit (120) on said dedicated downlink channel. A communication system and communication unit are also provided. This provides the advantage that a dedicated channel is used for requesting shared resources thereby avoiding various problems, including clashes, associated with using a random access channel.

Abstract: An apparatus for use in allocating resource in a wireless communication system employing transfer communication protocol (TCP) based data transfer between a network and a wireless subscriber communication unit comprises a scheduler (428) located in the network, wherein the scheduler buffers a TCP data segment for downlink (DL) transmission. A transmitter is arranged to transmit the buffered TCP data segment to the UE; wherein the message indicates an allocation of DL resources plus sufficient uplink resources to transfer a stand-alone ACK data segment (530). In this manner, for example in large bulk data transfer cases, a reduced latency may be achieved that may lead to improved throughput, due to the fact that the overall throughput may be limited by the window size (i.e. number of unacknowledged segments) rather than the throughput possible across the air interface.

Abstract: A method for obtaining feedback from one or more wireless subscriber communication unit(s) related to a broadcast service in a wireless communication system comprising at least one communication cell. The method comprises transmitting a request message by a network controller to one or more wireless subscriber communication unit(s); receiving and processing the request message by a wireless subscriber communication unit; transmitting a layer-1 response signal by the wireless subscriber communication unit in response to the request message; and detecting by the network controller the layer-1 response signal in a particular communication cell, and in response thereto, performs one of the following: (i) entering a point-to-multipoint broadcast mode of operation; (ii) modifying a delivery of the broadcast service in that communication cell.

Abstract: The provisioning of a service, such as a multimedia service, over different networks is described. Transmission of first and second data streams is established in first and second transmission modes over first and second networks. The first and second data streams carry the same content, and the first and second networks employ first and second radio access technologies. At the receiver, the first and second data streams are combined at the application layer into a combined data stream, which is decoded into an output for presentation to a user.

Abstract: The establishment and reception of a service, such as a multimedia service, over different networks is described. A first and second network coupled by a home gateway may respectively employ first and second radio access technologies. An interface between the radio access technologies may communicate downlink channel setup requests. Uplink and downlink control signals are communicated via a first network. In response to the exchange of uplink and downlink control signals via a first network, multimedia data is received via the second network.

Abstract: A generalized duplexing method, base station (122) and mobile station (118) for TDD operation in a communication system (100) having a primary carrier (310; 410) operating in TDD mode; and at least one secondary carrier (320; 420). The method supports half-duplex and full duplex modes of operation. The primary and secondary carrier may operate at different chip rates. This provides the advantages that generalized duplexing operates on more than one RF carrier, and unlike conventional UTRA FDD mode generalized duplexing does not require a fixed frequency duplex spacing between RF carriers.

Abstract: A method, arrangement (512) and communication receiver (500) for SNIR estimation of a received signal, by: deriving (512A) an estimation {circumflex over (Z)} of SNIR of the received signal in accordance with the relation Z ^ = [ E ? { ? r ? ( t ) ? } ] 2 E ? { r 2 ? ( t ) } - [ E ? { ? r ? ( t ) ? } ] 2 , where E represents mean value and r(t) represents the level of the received signal; and correcting (512B, 512C) the estimation {circumflex over (Z)} to produce a corrected estimation Z based on the relation Z=?({circumflex over (Z)})×{circumflex over (Z)}, where ?({circumflex over (Z)}) represents a correction factor. The estimation may be corrected by calculating the correction factor, retrieving the correction factor from a predetermined table (512B) or retrieving the corrected estimation from a predetermined table. The correction may be effected by adding to a logarithmic estimation a logarithmic correction factor.

Abstract: Embodiments of the invention provide a controller, in a cellular wireless network for cancellation of interference from neighboring cells. Logic in the controller determines channel quality of a radio channel between a first base station and a UE. Scheduling logic causes the first base station and a second base station to adjust the number of data streams used for communication within a time period, as a function of the channel quality. Other embodiments provide an apparatus for reducing interference in a receiver that receives N data streams. Signal processing logic receives the N data streams, where N-M of the data streams represent interference with respect to M desired data streams, and cancels the N-M data streams so as to receive the M desired data streams. The N data streams may be received from multiple base stations, or multiple UEs.

Abstract: An arrangement and method for radio network relocation of a mobile terminal (114) from a first base station controller (122) to a second base station controller (122?) by anchoring at least some SGSN functions with respect to the first base station controller; and relocating at least some RNC functions from the first base station controller to the second base station controller RNC (124), SGSN (132) and GGSN (134) components may be integrated together, and the RNC (124) may be parented by an SGSN. Alternatively, RANAP SGSN functionality may be split between SGSN and RNC, RANAP and user plane signals may be relayed by the first base station controller to the second base station controller, and the first base station controller may act as an anchor.

Abstract: A method and arrangement for processing of CCTrCH data in a UMTS system, by: receiving CCTrCH data across a plurality of radio frames and timeslots (310); storing the received CCTrCH data (320); and upon receipt of complete data for a CCTrCH, processing the stored CCTrCH data through channel processing asynchronously to the received timeslot structure (360). Preferably, the received CCTrCH data is stored in a single RAM memory in link-list form, whereby each timeslot of received CCTrCH data can be independently accessed in the memory. This method of buffering the different parts of the received CCTrCH data, so that they can be recombined before the TrCH decoding and de-multiplexing, is both memory efficient and spreads out the processing load over time.

Abstract: An encoder and method for efficient synchronization channel encoding in UTRA TDD mode by: producing a codeword a, where a=dG+z modulo-2, where d represents a predetermined code group to be encoded, G represents a predetermined generator matrix, and z represents a function of the code group number and a row of the generator matrix; producing values sk=2a2k+1+ak;k=0, 1, 2, 3, and associated values b0,b1,b2; and producing a value Sssc associated with the code group, where Sssc=(b0c?(0),b1c?(1),b2c?(2)), c? represents a code within the code group, and b0,b1,b2?(±1,±j). This provides an efficient encoding architecture for the synchronization channel in UTRA TDD mode; and, in addition, by simple manipulation of the generation matrix, a higher chip rate signal may be signalled while still preserving the signalling information for the lower chip rate.

Abstract: 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.

Abstract: Network-initated connection establishment employs base stations that affix a temporary identifier and a shared control channel index to a paging message. User equipment for which the paging message is intended responds with a paging acknowledgement. In response to the paging acknowledgement, the network establishes shared channel connectivity with the UE.

Abstract: An apparatus 300 for a cellular communication system (100) comprises a buffer (303) which receives data for transmission over an air interface (115). The buffer (303) is coupled to a scheduler (305) which schedules the data and allocates the physical resource of the air interface (115). The transmissions are performed using a retransmission scheme such as a Hybrid-Automatic Repeat reQuest scheme. A load processor (309) determines a load characteristic associated with the scheduler (305) and a target controller (311) sets a target parameter for the retransmission scheme in response to the load characteristic. Specifically, a block error rate target may be set in response to a load level of a cell or plurality of cells. A transmission controller (307) sets a transmission parameter for a transmission in response to the target parameter and a transmitter (301) transmits the data using the transmission parameter.

Abstract: Embodiments of the invention provide for allocating spectrum in a wireless communication system that supports simultaneously at least a first mode of operation and a second mode of operation. Logic is arranged for determining a proportion of spectrum required for the wireless communication unit to operate simultaneously in both the first mode of operation and the second mode of operation. Logic for allocating spectrum allocates a temporary guard band between a first portion of spectrum for the first mode of operation and a second portion of spectrum for the second mode of operation for use whilst the wireless communication unit operates simultaneously in the first mode of operation and second mode of operation.

Abstract: A method and arrangement for fair control of resources amongst users with different instantaneous throughputs in a radio communication system such as a UMTS system. Respective indications of users among whom resources are to be allocated are placed in a ‘round robin’ queue (200) and each user whose indication is at the head of the queue is allocated a number of resource units as a function of: ?, a predetermined parameter determining the extent to which a fixed number of resource units should be allocated to the user and the extent to which a fixed volume of data should be transferred from/to the user; ?, the volume of data that the user is allowed to transfer if ?=1; ?, the number of resource units that can be allocated if ?=0; and ?, the number of information bits per resource unit that can be transferred to/from the user. This provides the following advantages: the resources can be allocated in the manner chosen by the operator, the function requires very few input parameters, and so is simple to operate.

Abstract: 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.

Abstract: Aspects of the invention include a root node of a wireless communication infrastructure that buffers data packets for transmission by base stations over an air interface. The root node determines a time delay for transmission of a data packet from the root node to each base station, a maximum time delay of those time delays, and a timing latency based upon the maximum time delay. The root node transmits the timing latency to the base stations. In response, each base station initiates transmission of data packets received by the root node after expiration of the timing latency. Alternatively, the root node, instead of the base stations, may buffer the data packets, and transmit them so that they arrive at the base stations at substantially the same time.