Method and system for millimeter wave hotspot (mmH) backhaul and physical (PHY) layer transmissions

Patent metadata

Field	Value
Publication number	US-10084515-B2
Application number	US-201415029837-A
Country	US
Kind code	B2
Filing date	Oct 16, 2014
Priority date	Oct 16, 2013
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

A method and apparatus are disclosed for communication in a Millimeter Wave Hotspot (mmH) backhaul system which uses mesh nodes. A mmH mesh node may receive a control signal which includes a total number of available control slots. The mesh node may determine the number of iterations of a resource scheduling mechanism that can be made during the time period of all available control slots, based on the number of neighbor nodes for the mesh node. Further, the mesh node may receive control slot information, including information about traffic queues and priorities. The mesh node may then perform resource scheduling using the resource scheduling mechanism based on the currently received control slot information and control slot information received in previous iterations of resource scheduling. The mesh node may also adjust a preamble based on a time between a last packet transmission and a current packet transmission to a neighboring node.

First claim

What is claimed is:

1. A method implemented in a mesh node for use in mesh operations, the method comprising:
receiving, by the mesh node, a signal including a preamble, wherein the preamble includes a first Golay sequence that is different from a second Golay sequence, wherein the second Golay sequence is an initial Golay sequence;
adjusting, by the mesh node, the preamble based on the received first Golay sequence; and
sending, by the mesh node, transmissions using the adjusted preamble to a neighboring node.

2. The method of claim 1 , wherein the signal including the preamble is received from a central node.

3. The method of claim 1 , wherein the first Golay sequence included in the preamble is based on content of a data payload in a received transmission.

4. The method of claim 1 , further comprising:
sending, by the mesh node, transmissions using the adjusted preamble to a plurality of neighboring nodes.

5. The method of claim 1 , further comprising:
adjusting, by the mesh node, a preamble based on estimated channel conditions for at least one neighboring node.

6. The method of claim 1 , further comprising:
sending, by the mesh node, further transmissions using the adjusted preamble based on receiving an acknowledgement or using a preamble longer than the adjusted preamble based failing to receive an acknowledgement.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Ferrante Steven
• Roy Arnab
• Pietraski Philip J
• Pragada Ravikumar V

Classifications

• H04W72/56

  based on priority criteria · CPC title

• H04W72/20 Primary

  Control channels or signalling for resource management · CPC title

• H04W72/0406

  Electricity · mapped topic

• H04B7/0408

  using two or more beams, i.e. beam diversity · CPC title

• H04B7/0452 Primary

  Multi-user MIMO systems · CPC title