Wireless communication method and apparatus
First Claim
1. A method for establishing communications between a unit and a plurality of N node units wherein K node units of said plurality of node units have established communications channels with said master unit using upto 2K different spread spectrum codes, respectively, with a time slot for each the the K node units in the first K time slots, respectively, and a first node unit of the N-K node units of said plurality of said node units, desires to establish communications with said master unit, comprising the steps of:
- transmitting, in a (K+1)th time slot from said master unit, a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
transmitting, in the (K+1)th time slot from said first node unit, responsive to receiving the master-initialization spread spectrum signal at said first node unit, a first node-initialization spread spectrum signal;
transmitting, in the (K+1)th time slot from said master unit, responsive to receiving the first node-initialization spread spectrum signal at said master unit, a master-identification spread spectrum signal with a master-unit-slot-identification code, modulated by the master-common-signalling chip code having a master-identification code;
transmitting, in the (K+1)th time slot from said first node unit, responsive to receiving the master-identification spread spectrum signal at said first node unit, a second node-initialization spread spectrum signal modulated by a (K+1)-node-identification code and the master-common-signalling chip code;
generating, at said first node unit using the master identification code, a master unit chip code for transmitting spread spectrum signals to said master unit;
generating, at said master unit using the (K+1)-node-identification code, a (K+1)-node-unit chip code for transmitting;
spread spectrum signals to said first node unit; and
communicating from said master unit using the (K+1)-node-unit chip code to said first node unit, and from said first node unit using the master unit chip code to said master unit, in the (K+1)th time slot.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for establishing communications between a master unit and a plurality of node units. Of the plurality of node units, K node units are assumed to have established communications with a master unit. A first (K+1) node unit of the plurality of node units, desires to establish communications with the master unit. The method includes transmitting from the master unit, a base-station spread spectrum signal having a common signalling chip code, transmitting from the first node unit a second spread spectrum signal with a first identification code using the common-signalling chip code, transmitting from the master unit a third spread spectrum signal with a master unit identification code, using the common-signalling chip code. The method further includes generating at the first node unit using the master unit identification signal, a master unit chip code for transmitting spread spectrum signals to the master unit. Additionally, the method includes generating, at the master unit using the first identification code, a first node unit chip code for transmitting spread spectrum signals to the first node unit.
-
Citations
12 Claims
-
1. A method for establishing communications between a unit and a plurality of N node units wherein K node units of said plurality of node units have established communications channels with said master unit using upto 2K different spread spectrum codes, respectively, with a time slot for each the the K node units in the first K time slots, respectively, and a first node unit of the N-K node units of said plurality of said node units, desires to establish communications with said master unit, comprising the steps of:
-
transmitting, in a (K+1)th time slot from said master unit, a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
transmitting, in the (K+1)th time slot from said first node unit, responsive to receiving the master-initialization spread spectrum signal at said first node unit, a first node-initialization spread spectrum signal;
transmitting, in the (K+1)th time slot from said master unit, responsive to receiving the first node-initialization spread spectrum signal at said master unit, a master-identification spread spectrum signal with a master-unit-slot-identification code, modulated by the master-common-signalling chip code having a master-identification code;
transmitting, in the (K+1)th time slot from said first node unit, responsive to receiving the master-identification spread spectrum signal at said first node unit, a second node-initialization spread spectrum signal modulated by a (K+1)-node-identification code and the master-common-signalling chip code;
generating, at said first node unit using the master identification code, a master unit chip code for transmitting spread spectrum signals to said master unit;
generating, at said master unit using the (K+1)-node-identification code, a (K+1)-node-unit chip code for transmitting;
spread spectrum signals to said first node unit; and
communicating from said master unit using the (K+1)-node-unit chip code to said first node unit, and from said first node unit using the master unit chip code to said master unit, in the (K+1)th time slot.
-
-
2. A method for establishing communications between a master unit and a first node unit comprising the steps of:
-
transmitting, a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
transmitting, responsive to receiving the master-initialization spread spectrum signal at said first node unit, a first node-initialization spread spectrum signal;
transmitting, responsive to receiving the first node-initialization spread spectrum signal at said master unit, a master-identification spread spectrum signal having a master-unit-slot-identification code modulated by the master-common-signalling chip code having a master-identification code;
transmitting, responsive to receiving the master-identification spread spectrum signal at said first node unit, a second node-initialization spread spectrum signal modulated by a first identification code and the master-common-signalling chip code of the master-initialization spread spectrum signal;
generating, at said first-node unit using the master identification spread spectrum signal, a master unit chip code for transmitting spread spectrum signals to said master unit. - View Dependent Claims (3)
-
-
4. A system for establishing communications between a master unit and a plurality of N node units wherein K node units of said plurality of node units have established communications channels with said master unit using upto 2K different spread spectrum codes, respectively, with a time slot for each the the K node units in the first K time slots, respectively, and a first node unit of the N-K node units of said plurality of said node units, desires to establish communications with said master unit, comprising:
-
means, located at said master unit, for transmitting, in a (K+1)th time slot from said master unit, a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
means, located at said first node unit and responsive to receiving the master-initialization spread spectrum signal at said first node unit, for transmitting, in the (K+1)th time slot from said first node unit, a first node-initialization spread spectrum signal;
means, located at said master unit and responsive to receiving the first node-initialization spread spectrum signal at said master unit, for transmitting in the (K+1)th time slot from said master unit, a master-identification spread spectrum signal with a master-unit-slot-identification code, modulated by the master-common-signalling chip code having a master-identification code;
means located at said first node unit and responsive to receiving the master-identification spread spectrum signal at said first node unit, for transmitting, in the (K+1)th time slot from said first node unit, a second node-initialization spread spectrum signal modulated by a (K+1)-node-identification code and the master-common-signalling chip code;
means, located at said first node unit and using the master identification code, for generating a master unit chip code for transmitting spread spectrum signals to said master unit;
mean, located at said master unit and using the (K+1)-node-identification code, for generating a (K+1)-node-chip code for transmitting spread spectrum signals to said first node unit;
means located at said master unit for communicating from said master unit using the (K+1)-node-unit chip code, in the (K+1)th time slot; and
means located at said first node unit for communicating from said first node unit using the master unit chip code, in the (K+1)th time slot.
-
-
5. A system for establishing communications between a master unit and a first node unit, comprising:
-
means, located at said master unit, for transmitting a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
means, located at said first node unit and responsive to receiving the master-initialization spread spectrum signal, for transmitting a first node-initialization spread spectrum signal;
means, located at said master unit and responsive to receiving the first node-initialization spread spectrum signal, for transmitting a master-identification spread spectrum signal with a master-unit-slot-identification code, modulated by the master-common-signalling chip code having a master-identification code;
means located at said first node unit and responsive to receiving the master-identification spread spectrum signal, for transmitting a second node-initialization spread spectrum signal modulated by a (K+1)-node-identification code and the master-common-signalling chip code;
means, located at said first node unit and using the master identification code, for generating a master unit chip code for transmitting spread spectrum signals to said master unit;
mean, located at said master unit and using the first identification code, for generating a (K+1)-node-unit chip code for transmitting spread spectrum signals to said first node unit;
means located at said master unit for communicating from said master unit using the (K+1)-node-unit chip code, in the (K+1)th time slot; and
means located at said first node unit for communicating from said first node unit using the master unit chip code, in the (K+1)th time slot. - View Dependent Claims (6)
-
-
7. A method for establishing communications between a master unit and a plurality of N node units wherein K node units of said plurality of node units have established communications channels with said master unit using upto 2K different spread spectrum codes, respectively, with a time slot for each the the K node units in the first K time slots, respectively, and a first node unit of the N-K node units of said plurality of said node units, desires to establish communications with said master unit, comprising the steps of:
-
transmitting, in a (K+1)th time slot from said master unit, a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
transmitting, in the (K+1)th time slot from said first node unit, responsive to receiving the master-initialization spread spectrum signal at said first node unit, a node-identification spread spectrum signal modulated by a (K+1)-node-identification code and the node-common-signalling chip code;
transmitting, in the (K+1)th time slot from said master unit, responsive to receiving the first node-initialization spread spectrum signal at said master unit, a master-identification spread spectrum signal with a master-unit-slot-identification code, modulated by the master-common-signalling chip code having a master-identification code;
generating, at said first node unit using the master identification code, a master unit chip code for transmitting spread spectrum signals to said master unit;
generating, at said master unit using the (K+1)-node-identification code, a (K+1)-node-unit chip code for transmitting spread spectrum signals to said first node unit; and
communicating from said master unit using the (K+1)-node-unit chip code, and from said first node unit using the master unit chip code, in the (K+1)th time slot.
-
-
8. A method for establishing communications between a master unit and a first node unit comprising the steps of:
-
transmitting from said master unit a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
transmitting, responsive to receiving the master-initialization spread spectrum signal at said first node unit, a first node-identification spread spectrum signal modulated by a first identification code;
transmitting, responsive to receiving the first node-identification spread spectrum signal at said master unit, a master-identification spread spectrum signal having a master-unit-slot-identification code;
generating, at said first node unit using the master identification code, a master unit chip code for transmitting spread spectrum signals to said master unit;
generating, at said master unit using the (K+1)-node-identification code, a (K+1)-node-unit chip code for transmitting spread spectrum signals to said first node unit; and
communicating from said master unit using the (K+1)-node-unit chip code, and from said first node unit using the master unit chip code. - View Dependent Claims (9)
-
-
10. A system for establishing communications between a master unit and a plurality of N node units wherein K node units of said plurality of node units have established communications channels with said master unit using upto 2K different spread spectrum codes, respectively, with a time slot for each the the K node units in the first K time slots, respectively, and a first node unit of the N-K node units of said plurality of said node units, desires to establish communications with said master unit, comprising:
-
means, located at said master unit, for transmitting, in a (K+1)th time slot from said master unit, a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
means, located at said first node unit and responsive to receiving the master-identification spread spectrum signal at said first node unit, for transmitting, in the (K+1)th time slot from said first node unit, a node-identification spread spectrum signal modulated by a first identification code and the master-common-signalling chip code of the master-initialization spread spectrum signal;
means, located at said master unit and responsive to receiving the first node-identification spread spectrum signal at said master unit, for transmitting in the (K+1)th time slot from said master unit, a master-identification spread spectrum signal with a master-unit-slot-identification code, modulated by the master-common-signalling chip code having a master-identification code;
means, located at said first node unit and using the master identification code, for generating a master unit chip code for transmitting spread spectrum signals to said master unit;
mean, located at said master unit and using the (K+1)-node-identification code, for generating a (K+1)-node-chip code for transmitting spread spectrum signals to said first node unit;
means located at said master unit for communicating from said master unit using the (K+1)-node-unit chip code, in the (K+1)th time slot; and
means located at said first node unit for communicating from said first node unit using the master unit chip code, in the (K+1)th time slot.
-
-
11. A system for establishing communications between a master unit and a first node unit, comprising:
-
means, located at said master unit, for transmitting a master-initialization spread spectrum signal modulated by a master-common-signalling chip code;
means, located at said first node unit and responsive to receiving the master-initialization spread spectrum signal, for transmitting, a first node-identification spread spectrum signal modulated by a first identification code;
means, located at said master unit and responsive to receiving the first node-identification spread spectrum signal, for transmitting a master-identification spread spectrum signal with a master-unit-slot-identification code;
means, located at said first node unit and using the master-identification code for generating a master unit chip code for transmitting spread spectrum signals to said master unit;
mean, located at said master unit and using the first identification code, for generating a (K+1)-node-unit chip code for transmitting spread spectrum signals to said first node unit;
means located at said master unit for communicating from said master unit using the (K+1)-node-unit chip code, in the (K+1)th time slot; and
means located at said first node unit for communicating from said first node unit using the master unit chip code, in the (K+1)th time slot. - View Dependent Claims (12)
-
Specification