Access to communications systems

• US 6,850,504 B1
• Filed: 10/28/1998
• Issued: 02/01/2005
• Est. Priority Date: 10/31/1997
• Status: Expired due to Term

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Freiberg, Lorenz Fred, Reader, David Jonathan, Cao, Qiang
• Primary Examiner(s): MARCELO, MELVIN C
• Application Number:
  US09/181,327
• Time in Patent Office: 2,288 Days
• Field of Search: 340/310.1, 340/310.2, 340/328, 340/329, 340/336, 340/338, 340/345, 340/349, 340/335, 340/342
• US Class Current: 370/335
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

In a code division multiple access (CDMA) wireless system, a wireless terminal transmits information packets to a communications systems controller. Each information packet comprises a piggy back field which indicates to the communication systems controller resources requested by the wireless terminal for transmission of subsequent information packets.

Claims

1. A method for an end-user device to request resources in a code division multiple access (CDMA) communication system comprising:

generating a plurality of information packets to be transmitted by said end-user device;

transmitting said information packets, in a sequence, over a communications channel within said communications system, characterised in that each information packet contains a piggy back field which indicates to a communication system controller resources requested by said end-user device for transmission of another information packet in said sequence, the resources including at least two of the group of data rate, delay and codes.

2. A method as claimed in claim 1 characterised in that the another information packet is the next information packet in said sequence.

3. A method as claimed in claim 1 characterised in that the communication system controller indicates changes in resources allocated to said end-user device.

4. A method as claimed in claim 1, characterised in that the communication system controller indicates changes in resources allocated to said end-user device in accordance with a result of negotiating with a mobile station, and grants permission for the mobile station to transmit.

6. A communication system as claimed in claim 4, in which the communication system controller is operative to indicate changes in resources allocated to said end-user device in accordance with a result of negotiating with the mobile station, and grants permission for a mobile station to transmits.

5. A code division multiple access (CDMA) communication system comprising:

at least one end-user device and

a communication channel within said communication system and over which information packets are transmitted, in a sequence, by said end-user device characterised in that each information packet contains a piggy back field which indicates to a communication systems controller resources requested by said end-user device for transmission of another information packet in said sequence, the resources including data rate, delay and codes.

7. A method for an end-user device to request resources in a communication system employing a code divisional multiplex access (CDMA) protocol, the communication system comprising a plurality of a communication system controllers, at least one end-user device, and a communication channel for contending for access to a traffic channel (TCH), said method comprising the steps of:

generating a plurality of information packets to be transmitted by said end-user device;

the end user device transmitting said information packets, in a sequence, over a communications channel within said communication system to a communication system controller, characterized in that each information packet contains a piggyback field which indicates to the communication system controller resources requested by said end-user device for transmission of another information packet in said sequence, the resources including at least data rate, delay, and codes; and

the communication system controller indicates changes in resources allocated to said end-user device in accordance with a result of negotiating with the mobile station, and grants permission for a mobile station to transmit.

8. A method as claimed in claim 7 characterized in that the another information packet is the next information packet in said sequence.

9. A communication system employing a code division multiplex access (CDMA) protocol, which includes at least one communication system controller, comprising:

at least one end-user device contending for access, for transmitting packets, on a traffic channel (TCH), which comprises means for transmitting an information packet to a communication system controller including a dynamic resource allocation table, and

a communication channel within said communication system and over which information packets are transmitted, in a sequence, by said end-user device characterized in that

each information packet contains a piggyback field which indicates to a communications system controller resources requested by said end-user device for transmission of another information packet in said sequence, the resources including at least data rate, delay and codes in order to make the communication system controller update the dynamic resource allocation table in accordance with a result of a negotiation between the end-user device and the communication system controller.