Portable wireless local area network

• US 5,684,801 A
• Filed: 12/30/1994
• Issued: 11/04/1997
• Est. Priority Date: 12/30/1994
• Status: Expired due to Term

• Current Assignee: AT&T IPM Corp. (AT&T, Inc.)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Amitay, Noach, Sizer, Theodore II
• Primary Examiner(s): TON, DANG T
• Application Number:
  US08/366,540
• Time in Patent Office: 1,040 Days
• Field of Search: 370/50, 370/70, 370/95.1, 370/95.2, 370/95.3, 370/85.7, 370/85.2, 370/85.3, 370/85.6, 370/85.8, 370/91, 370/92, 370/93, 370/94.1, 370/94.2, 370/94.3, 370/60, 370/66, 370/60.1, 370/13.1, 370/75, 370/97, 370/106, 370/107, 370/108, 370/110.1, 370/100.1, 370/18, 370/69.1, 370/295, 370/302, 370/294, 370/313, 370/311, 370/315 , 370/314, 370/320, 370/321, 370/324, 370/326, 370/329, 370/335, 370/343, 370/346-350, 370/402, 370/403, 370/418, 370/421, 370/425, 370/444-462, 370/475 , 370/492, 370/501, 370/503, 370/908, 455/3.1, 455/3.2, 455/3.3, 455/4.2, 455/5.1, 455/11.1, 455/12.1, 455/13.1, 455/13.2, 455/13.4, 455/15, 455/16, 455/17, 455/20, 455/23, 455/33.1, 455/35.1, 455/37.1 , 455/38.1, 455/38.2, 455/38.5, 455/53.1, 455/54.1, 375/211, 375/200, 375/202, 375/205, 375/206, 375/208, 375/209, 375/210, 375/212, 375/367, 340/825.5, 340/825.51, 340/825.52, 340/825.08, 340/825.03, 340/825.04, 379/4, 348/6, 348/7, 380/34, 380/43
• US Class Current: 370/447
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 74/00 Wireless channel access
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A wireless Local Area Network (LAN) includes a repeater which a) synchronizes interface adapters for portable end-user devices and b) retransmits data signals received which retimes and retransmits data signals received from these end-user devices that gain, one at a time, the exclusive right to transmit those signals during a given transmission time subframe by contending for access to the LAN resources that are auctioned off to permit LAN resource utilization that is independent of traffic load and that is implemented in a near collision-free environment.

Claims

1. A wireless local area network for exchanging data between a plurality of end-user devices, comprising

a plurality of adapters each one of said adapters being coupled to respective one of said end-user devices, and being arranged such that in response to a request from more than one of said end-user devices for resources of said local area network, said adapters cooperate to allocate said resources to a particular one of said end-user-devices only when said particular one of said end-user devices is a sole winner of an auction among said more than one of said end-user devices requesting access to said resources;

and a repeater which receives data signals from said particular one of said end-user devices which won said auction and which broadcasts said received data signals to said end-user devices.

2. The invention of claim 1 wherein said repeater includes:

a transceiver which transmits said received data signals at a different frequency from which said signals were received.

3. The invention of claim 1 further including

respective processors which are included in said adapters and which perform successive comparisons of most significant bits in addresses associated with each one of said end-user devices during successive rounds of said auction until said sole winner is selected.

4. The invention of claim 1 wherein at least two of said end-user devices communicate their respective address in order to participate in said auction.

5. The invention of claim 1 further including

respective processors which are included in said adapters and which perform successive comparisons of most significant digits in codes associated with each one of said end-user devices during successive rounds of said auction until said sole winner is selected.

6. The invention of claim 1 wherein said repeater

defines time intervals within which said auction for said resources can be held.

7. The invention of claim 1 wherein said repeater

provides timing signals for said end-user devices.

14. The invention of claim 1 wherein said broadcasting step further includes the step of:

providing timing signals for said received data signals.

8. A method of operating a wireless local area network for exchanging data between a plurality of end-user devices, said method comprising the steps of:

receiving from more than one of said end-user devices a request to access resources of said wireless local area network;

in response to said request, granting said access to said resources of said wireless local area network only when a particular one of said more than one end-user devices is a sole winner of an auction among said more than one end-user devices contending for said access to said wireless local area network resources; and

broadcasting from a repeater data signals received from said particular one of said end-user devices to said plurality of end-user devices.

9. The invention of claim 8 wherein said broadcasting step includes the step of:

transmitting said received data signals at a different frequency from which said signals were received.

10. The invention of claim 8 wherein said granting step includes the step of:

performing successive comparisons of most significant bits in respective addresses associated with each one of said end-user devices during successive rounds of said auction until said sole winner is selected.

11. The invention of claim 8 further comprising the step of:

communicating an address by each end-user device in order to participate in said auction.

12. The invention of claim 8 wherein said granting step includes the step of:

performing successive comparisons of most significant digits in codes associated with each one of said end-user devices during successive rounds of said auction until said sole winner is selected.

13. The invention of claim 8 further comprising the step of:

defining time intervals within which said auction for said resources can be held.

15. A wireless local area network for exchanging data between a plurality of end-user devices, said local area network comprising:

means for receiving from said end-user devices requests for access to said local area network;

means for defining transmission cycles for exchange of data on said local area network;

means for assigning a unique address to each of the end-user devices requesting access to said local area network for use of resources of said local area network; and

means within each of the end-user devices for collectively allocating access to said local area network to a particular one of said end-user devices requesting use of the resources of said local area network within said transmission cycle only when the particular one of said end-user devices is a sole winner of an auction for said access to said local area network, wherein at least one other end-user device to which a unique address has been assigned competes for said access to said local area network in said auction.

16. A wireless local area network for exchanging data between a plurality of end-user devices, comprising

a repeater which receives data signals from a particular one of said end-user devices and which broadcasts said received data signals to the other end-user devices;

a plurality of adapters which are arranged to a) couple respective ones of said end-user devices to said local area network and b) allocate resources of said local area network to a particular one of said end-user devices in response to receiving from more than one of said end-user devices a request to access said resources of said local area network, said resources being allocated to said particular one of said end-user devices only when said particular one of said end-user devices is a sole winner of an auction among said more than one end-user devices which contend for access to said resources, said allocation of resources allowing data to be received from said particular one of said end-user devices by said repeater for broadcasting to said plurality of end-user devices.