公开(公告)号：WO0189096A2

公开(公告)日：2001-11-22

申请号：PCT/CA0100672

申请日：2001-05-09

Applicant: SOMA NETWORKS INC ,  SNELGROVE W MARTIN ,  HEESWYK FRANK M VAN ,  KSCHISCHANG FRANK ,  FRAZER MARK JAMES ,  MANTHA RAMESH

Inventor： SNELGROVE W MARTIN ,  VAN HEESWYK FRANK M ,  KSCHISCHANG FRANK ,  FRAZER MARK JAMES ,  MANTHA RAMESH

IPC: H04B1/707 ,  H04B7/26 ,  H04L12/917 ,  H04W28/18 ,  H04B

CPC classification number: H04W28/18

Abstract: A communication structure and method which allows connection-like and connectionless communications to be provided on a multiplexed link is provided. The structure and method can make efficient use of available transmission capacity and/or network resources while providing both types of communication and hybrids. Connection-like communications can be provided by a channel having located transmission capacity dedicated to the communication while connectionless communications can be provided by a shared channel through which data can be transmitted to subscribers. In an embodiment, the shared channel transmits frames of packets addressed to one or more of the subscribers. The allocation of transmission capacity between the dedicated channels and the shared channel can be fixed, or can be managed to meet network or network operator requirements. The structure and method can also be managed by the network operator to permit prioritization of some communciations over others. In another embodiment, two or more shared channels are provided in addition to the dedicated channels.

Abstract translation: 提供了允许在多路复用链路上提供连接和无连接通信的通信结构和方法。 结构和方法可以有效地利用可用的传输容量和/或网络资源，同时提供两种类型的通信和混合。 可以通过具有专用于通信的传输容量的信道来提供连接状通信，而无线通信可以由共享信道提供，通过该共享信道可以向用户发送数据。 在一个实施例中，共享信道发送寻址到一个或多个订户的分组帧。 专用信道和共享信道之间的传输容量分配可以是固定的，也可以被管理以满足网络或网络运营商的要求。 网络运营商也可以对结构和方法进行管理，以便对某些交流进行优先级排序。 在另一个实施例中，除专用信道之外还提供两个或更多个共享信道。

公开(公告)号：AU2006235838A1

公开(公告)日：2006-11-23

申请号：AU2006235838

申请日：2006-11-03

Applicant: SOMA NETWORKS INC

Inventor： MANTHA RAMESH

IPC: H04B1/707

公开(公告)号：AU2005244566A1

公开(公告)日：2006-01-12

申请号：AU2005244566

申请日：2005-12-16

Applicant: SOMA NETWORKS INC

Inventor： HEESWYK FRANK VAN ,  MANTHA RAMESH ,  SNELGROVE MARTIN

IPC: H04Q7/38

公开(公告)号：CA2364860A1

公开(公告)日：2003-06-13

申请号：CA2364860

申请日：2001-12-13

Applicant: SOMA NETWORKS INC

Inventor： MANTHA RAMESH ,  CASTURA JEFFREY P

IPC: H04L12/28 ,  H04L47/43 ,  H04W28/12 ,  H04W74/02 ,  H04Q7/36 ,  H04Q7/38

Abstract: A novel communication channel structure and method in a wireless communicati on system is provided. In an embodiment of the invention, the communication system includes a base station and a plurality of subscriber stations and the subscriber stations are given access to a variety of channels, including at least one uplink data channel. The uplink data channel can operate in at least a random access mode and a polled access mode. The base station informs each subscriber station it serves of the current mode of the uplink channel via an associated downlink signaling channel and, in random access mode, each subscriber stati on is able to randomly access the shared uplink channel. In polled mode, each subscriber station waits for permission from the base station before sending data over the shared uplink channel. A method of operating the system monitors the collisions which occur on the uplink channel in random mode and/or the amount of data and/or the data's priority level and/or QoS requirements and switches the system between random and polled modes as appropriate. In polle d mode, the method determines which subscriber stations should access the uplink and whe n.

公开(公告)号：CA2505712A1

公开(公告)日：2003-05-08

申请号：CA2505712

申请日：2002-10-31

Applicant: SOMA NETWORKS INC

Inventor： MANTHA RAMESH ,  CASTURA JEFFERY P

IPC: H04B7/08

Abstract: The present invention provides a method and system for mitigating fading and/or poor reception at a receiver. The receiver includes an antenna diversity mechanism which can be operated in a variety of antenna configurations each of which can provide different reception characteristics . The receiver evaluates the reception quality of the radio signal with the antenna in a first configuration and with the antenna in at least a second configuration and selects the antenna configuration that has the best evaluated reception for use until a subsequent iteration, when the process i s repeated. The antenna configurations can correspond to configurations wherei n reception is favored in different directions or to configurations wherein different antennas are selected, each antenna being spaced from each other antenna. The method can also improve the reception of a signal transmitted b y selecting an antenna configuration for transmissions which provides improved reception quality at the destination receiver.

公开(公告)号：AU1200202A

公开(公告)日：2002-04-22

申请号：AU1200202

申请日：2001-10-05

Applicant: SOMA NETWORKS INC

Inventor： MANTHA RAMESH

IPC: H04B1/707 ,  H04B7/26

公开(公告)号：CA2346214A1

公开(公告)日：2002-03-14

申请号：CA2346214

申请日：2001-05-02

Applicant: SOMA NETWORKS INC

Inventor： MANTHA RAMESH ,  FRAZER MARK

IPC: H04B7/005 ,  H04Q7/36

Abstract: The present invention provides a novel system, method and apparatus for allocating power between at least two communication services that share a common power output limit. Two communication services particularly suited for the present invention are voi ce services and data services transmitted on the downlink of a wireless network. An embodime nt of the method includes determining the actual consumption of power on the voice channels of the wireless network during a given time period, and allocating substantially th e same amount of power to the voice channels for the next time period, thus allowing for the allocation of the remaining amount of power to the data services, and thereby allowing, for example, increased modulation of the data services and thereby improve overall rates of data transfer and/or reliability of data transmission. Another embodiment of the method includes determining the power requirements for at least one communication service during the current time period; and, allocating a portion of the power budget to each communication services based on the determination.

公开(公告)号：AU6717001A

公开(公告)日：2001-12-11

申请号：AU6717001

申请日：2001-05-24

Applicant: SOMA NETWORKS INC

Inventor： SNELGROVE W MARTIN ,  KSCHISCHANG FRANK ,  HEESWYK FRANK M VAN ,  MANTHA RAMESH ,  FRAZER MARK J

IPC: H04H20/00 ,  H04L12/803 ,  H04L12/851 ,  H04L27/34 ,  H04W72/04 ,  H04W84/00 ,  H04L12/28 ,  H04Q7/20 ,  H04L29/06 ,  H04M7/00

Abstract: A communication structure and method which allows connection-like and connectionless communications to be provided on a multiplexed link is provided. The structure and method can make efficient use of available transmission capacity and/or network resources while providing for both types of communication. Connection-like communications can be provided by a channel having allocated bandwidth dedicated to the communication while connectionless communication can be provided by a shared channel through which data can be transmitted to subscribers. In an embodiment, the shared channel transmits frames of packets addressed to one or more of the subscribers. The frames can have a robustly packaged header that can be received by all subscriber stations serviced by the base station while payload data in the frame can be packaged with a level of robustness appropriate for the intended subscriber station. Different packagings can include different encoding and/or modulation of the payload data. The allocation of bandwidth between the dedicated channels and the broadcast channel can be fixed, or can be managed to meet network or network operator requirements. The structure and method can also be managed by the network operator to permit prioritization of some communications over others. In another embodiment, two or more shared channels are provided. In another embodiment, dedicated channels can be created with different amounts of bandwidth and/or can employ modulation and/or encoding selected according to the reception-quality of the recipient station.

公开(公告)号：AU5999301A

公开(公告)日：2001-12-03

申请号：AU5999301

申请日：2001-05-16

Applicant: SOMA NETWORKS INC

Inventor： MANTHA RAMESH

IPC: H04B7/26 ,  H04L1/00 ,  H04L1/18 ,  H04L12/56 ,  H04L29/06 ,  H04W28/04 ,  H04W48/08 ,  H04W88/02 ,  H04W88/08

Abstract: A data channel to transmit data from a transmitter to one or more of a plurality of receivers, each of which intermittently reports to the transmitter its reception quality of signals transmitted by the transmitter. The transmitter transmits the data in frames which include at least one block. Each block includes the same predefined number of traffic symbols, and includes a header portion and a payload portion. The header portion of each block is packaged for transmission in a robust manner, enhancing the probability that each receiver will be able to recover it and the header portion includes information required to recover the payload portion. The payload portion is, in accordance with the reception quality reported by the intended receiver, packaged to make efficient use of the transmission resources while ensuring a reasonable probability that the intended receiver will be able to recover the payload. The header portion can include indications of the modulation, forward error correction and repetition utilized to package the payload and can indicate the length of the payload.

公开(公告)号：WO0232003A9

公开(公告)日：2003-06-26

申请号：PCT/CA0101413

申请日：2001-10-05

Applicant: SOMA NETWORKS INC ,  MANTHA RAMESH

Inventor： MANTHA RAMESH

IPC: H04B1/707 ,  H04B7/26

CPC classification number: H04B1/7107

Abstract: An apparatus, system and method for improving the SNR of a desired signal received at a receiver in a multiple access communication system is disclosed. The apparatus, system and method subtracts known or knowable signals from the total signal received at the receiver and the desired signal is them determined from the result of the subtraction. The known, or knowable, signals can be synchronization signals or other interfering channel signals transmitted by the transmitter, such as a wireless network base station, serving the receiver, such as a subscriber station in such a wireless network, and/or can be such signals transmitted by another transmitter, such as an adjacent base station, or an adjacent sector in multi-sector systems.

Abstract translation: 公开了一种用于改善在多址通信系统中的接收机处接收到的期望信号的SNR的装置，系统和方法。 装置，系统和方法从在接收机处接收的总信号中减去已知或可知信号，并且从减法的结果确定所需的信号。 已知的或可以知道的信号可以是由诸如无线网络基站的发射机发射的同步信号或其他干扰信道信号，例如无线网络基站，例如在这样的无线网络中的用户站等服务于接收机，和/或可以是这样的 由多扇区系统中的另一发射机（例如相邻基站）或相邻扇区发射的信号。