Cellular communication system utilizing upgraded moving relays and methods useful in conjunction therewith

Patent metadata

Field	Value
Publication number	US-9369941-B2
Application number	US-201214004222-A
Country	US
Kind code	B2
Filing date	Mar 8, 2012
Priority date	Mar 10, 2011
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A moving cellular communication system comprising at least one upgraded moving relay including at least two base station functionalities and at least one mobile station functionality and a relay resource manager, all co-located, wherein each base station functionality of the upgraded moving relay is operative to communicate via antennae with at least one mobile station thereby to define a first radio link therebetween, and wherein each base station functionality has a connection to its relay resource manager, wherein each mobile station functionality of the upgraded moving relay communicates via antennae with a unit which has base station functionality thereby to define at least one second radio link, respectively, wherein the relay resource manager in each individual moving relay comprises a radio resource manager; and functionality for exchanging information with relay resource managers is included in moving relays other than the individual moving relay.

First claim

The invention claimed is:

1. A method for providing moving cellular communication, the method comprising:
providing at least one upgraded moving relay including at least two base station functionalities and at least one mobile station functionality and a relay resource manager, all co-located,
wherein each base station functionality from among said at least two base station functionalities of said upgraded moving relay is operative to communicate via antennae with at least one mobile station thereby to define a first radio link therebetween,
and wherein each base station functionality has a connection to its co-located relay resource manager,
wherein each mobile station functionality of said upgraded moving relay communicates via antennae with a unit which has base station functionality thereby to define at least one second radio link, respectively,
wherein providing the relay resource manager in each individual moving relay comprises:
providing a radio resource manager; and
providing functionality for exchanging information with relay resource managers included in moving relays other than said individual moving relay,
the method also comprising effecting dynamic cell setup without interrupting service to mobile stations served by said base station functionalities,
wherein said dynamic cell setup is effected by initiating a first hand-over between a first of the two base station functionalities to a second thereof; effecting the dynamic cell setup on the first base station functionality, then initiating a second hand-over between the second of the two base station functionalities to the first thereof and effecting the dynamic cell setup on the second base station functionality,
and wherein said first and second base station functionalities operate at first and second output powers respectively and wherein initiating the first hand-over comprises increasing a current level of the second output power of the second base station functionality and substantially simultaneously reducing the first output power of the first base station functionality to a reduced first output power level far enough below the second output power of the second base station functionality, to trigger hand-over from the first base station functionality to the second base station functionality.

2. The method according to claim 1 wherein the at least one mobile station functionality includes at least two mobile station functionalities co-located with said base station functionalities and relay resource manager,
wherein each mobile station functionality from among said at least two mobile station functionalities of said upgraded moving relay communicates via antennae with a unit which has base station functionality thereby to define at least two second radio links, respectively.

3. The method according to claim 1 and also comprising using said at least two base station functionalities to provide a bandwidth to a set of mobile base stations served by said at least two base station functionalities, that is wider than would be possible if the set of mobile base stations were to be served by only one of said at least two base station functionalities.

4. The method according to claim 3 wherein said using base station functionalities to provide, comprises coordinating the scheduler subsystems of said two base station functionalities to decrease interference between said two base station functionalities and to increase capacity achievable in at least one access link.

5. The method according to claim 3 wherein said using base station functionalities to provide, comprises coordinating the scheduler subsystems of said two base station functionalities to decrease interference between said two base station functionalities without separating said two base station functionalities to an extent that prevents the interference, and to increase the capacity achievable in said first link, and wherein the two base station functionalities are co-located.

6. The method according to claim 3 wherein said using base station functionalities to provide, comprises separating a large bandwidth to smaller bandwidth portions, wherein each of several base stations is assigned to a different bandwidth portion, and wherein portions reused more frequently are used near a cell and portions used less frequently are used closer to the edge of the cell, thereby, in combination with dynamic cell setup, enabling changing of bands more frequently.

7. The method according to claim 1 and also comprising:
providing a first set-up, suited to a first subset of a population of mobile stations served by said at least two base station functionalities, for a first base station functionality of said at least two base station functionalities;
providing a second set-up, which is suited to mobile stations not belonging to said first subset and which differs from the first set-up, for a second base station functionality of said at least two base station functionalities;
using the first base station functionality to serve mobile stations in the first subset; and
using the second base station functionality to serve mobile stations in the second subset.

8. The method according to claim 1 wherein said dynamic cell setup comprises providing a new value to a cell center frequency parameter.

9. The method according to claim 1 wherein said dynamic cell setup comprises providing a new value to a cell bandwidth parameter.

10. The method according to claim 1 wherein said dynamic cell setup comprises providing a new value to a frame timing parameter.

11. The method according to claim 1 wherein said dynamic cell setup comprises providing a new value to a master information block (MIB) parameter.

12. The method according to claim 1 and also comprising using said at least two base station functionalities to provide a data rate to a set of mobile base stations served by said at least two base station functionalities, that is higher than would be possible if the set of mobile base stations were to be served by only one of said at least two base station functionalities.

13. A method according to claim 1 wherein said dynamic cell setup comprises providing a new value to at least one base station parameter of each of said at least two base station functionalities.

14. The method according to claim 13 wherein said at least one base station parameter includes at least one of: output power, center frequency, bandwidth, PLMN ID, MIB data, frame timing.

15. A method for providing moving cellular communication, the method comprising:
providing at least one upgraded moving relay including at least two base station functionalities and at least one mobile station functionality and a relay resource manager, all co-located,
wherein each base station functionality from among said at least two base station functionalities of said upgraded moving relay is operative to communicate via antennae with at least one mobile station thereby to define a first radio link therebetween,
and wherein each base station functionality has a connection to its co-located relay resource manager,
wherein each mobile station functionality of said upgraded moving relay communicates via antennae with a unit which has base station functionality thereby to define at least one second radio link, respectively,
wherein providing the relay resource manager in each individual moving relay comprises:
providing a radio resource manager; and
providing functionality for exchanging information with relay resource managers included in moving relays other than said individual moving relay, and also comprising:
providing a first set-up, suited to a

Assignees

• Shoshan Yaakov
• Schwartz Adi
• Koifman Gil
• Elta Systems Ltd

Inventors

• Shoshan Yaakov
• Schwartz Adi
• Koifman Gil

Classifications

• H04B7/15542 Primary

  Selecting at relay station its transmit and receive resources (selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003) · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/30

  Resource management for broadcast services · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W8/085

  involving hierarchical organized mobility servers, e.g. hierarchical mobile IP [HMIP] · CPC title