Apparatus and method for improving connectivity for items of user equipment in a wireless network

• US 10,728,768 B2
• Filed: 06/06/2018
• Issued: 07/28/2020
• Est. Priority Date: 10/06/2017
• Status: Active Grant

• Current Assignee: Airspan IP Holdco LLC (Airspan Networks Holdings, Inc.)
• Original Assignee: Airspan Networks Inc.
• Inventors: Senior, Paul Nicholas
• Primary Examiner(s): Cho, Un C
• Assistant Examiner(s): Pace, Lalita W
• Application Number:
  US16/001,550
• Publication Number:
  US 20190110209A1
• Time in Patent Office: 783 Days
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

An apparatus and method are provided, the apparatus having a first antenna system providing a first sector of a telecommunications network, a second antenna system providing a second sector of the telecommunications network, a third antenna system for communicating with a base station of the telecommunications network to provide a first wireless backhaul path for the first and second sectors, and a fourth antenna system providing a wireless communication link to facilitate coupling of the apparatus into a mesh network of devices, the mesh network having at least one point of access into the telecommunications network, providing at least one further wireless backhaul path. Backhaul management circuitry is arranged, in at least one mode of operation, to control utilisation of the third and fourth antenna systems to provide backhaul connectivity to the telecommunications network for items of user equipment connected to the apparatus via the first and second antenna systems.

Claims

1. An apparatus comprising:

a first antenna system to provide a first sector of a telecommunications network;

a second antenna system to provide a second sector of the telecommunications network;

a third antenna system to communicate with a base station of the telecommunications network to provide a first wireless backhaul path for said first sector and said second sector;

a fourth antenna system to provide a wireless communication link to facilitate coupling of the apparatus into a mesh network of devices, the mesh network having at least one point of access into the telecommunications network such that the mesh network supports provision of at least one further wireless backhaul path for said first sector and said second sector; and

backhaul management circuitry operable, in at least one mode of operation, to control utilisation of the third antenna system and the fourth antenna system to provide backhaul connectivity to the telecommunications network for at least items of user equipment connected to the apparatus via the first and second antenna systems,

wherein the backhaul management circuitry comprises backhaul options analysis circuitry configured to perform a backhaul determination process to evaluate, for both said first wireless backhaul path and one or more routes through the mesh network to support said at least one further wireless backhaul path, at least one metric indicative of link quality,

wherein the backhaul management circuitry is configured, when said at least one metric indicative of link quality satisfies at least one condition, to use a combination of the first wireless backhaul path and the at least one further wireless backhaul path to provide the backhaul connectivity to the telecommunications network, and

wherein the backhaul management circuitry further comprises traffic monitoring circuitry to (i) evaluate available capacity of the first wireless backhaul path and the at least one further wireless backhaul path and (ii) determine, based on said evaluation, whether to allow the apparatus to act as a routing node within the mesh network, when acting as the routing node the apparatus being arranged to control usage of at least one of the third antenna system and the fourth antenna system to provide backhaul connectivity to the telecommunications network for items of user equipment connected to devices within the mesh network other than said apparatus.

2. An apparatus as claimed in claim 1, wherein the backhaul management circuitry is further arranged, in at least one mode of operation, to additionally control utilisation of the third antenna system and the fourth antenna system to provide backhaul connectivity to the telecommunications network for items of user equipment connected to devices within the mesh network other than said apparatus.

3. An apparatus as claimed in claim 1, wherein when the apparatus is deployed at a periphery of a building, the fourth antenna system is configured to generate at least one beam pattern that propagates away from the building to facilitate communication with at least one device of the mesh network external to the building.

4. An apparatus as claimed in claim 3, wherein the fourth antenna system comprises at least one array of antenna elements, and the apparatus further comprises beamforming circuitry to control said at least one beam pattern when establishing communication with said at least one device.

5. An apparatus as claimed in claim 1, wherein the backhaul options analysis circuitry is arranged to re-perform the backhaul determination process on occurrence of a trigger condition.

6. An apparatus as claimed in claim 1, wherein when the traffic monitoring circuitry determines that the available capacity is less than a selected threshold, the apparatus is constrained to act as a leaf node within the mesh network, when acting as the leaf node the apparatus being arranged to control usage of at least one of the third antenna system and the fourth antenna system to solely provide backhaul connectivity to the telecommunications network for items of user equipment connected to the apparatus via the first and second antenna systems.

7. An apparatus as claimed in claim 1, wherein the backhaul management circuitry comprises traffic type analysis circuitry to determine, for each block of backhaul traffic, a type of that traffic, and to select which one of the first wireless backhaul path and the at least one further wireless backhaul path is used for propagation of that block of backhaul traffic dependent on the determined type of that traffic.

8. An apparatus as claimed in claim 7, wherein each block comprises a packet, such that the determination as to which of the first wireless backhaul path and the at least one further wireless backhaul path to use is made on a packet-by-packet basis.

9. An apparatus as claimed in claim 7, wherein the backhaul management circuitry determines from the type of traffic whether an associated block of backhaul traffic is considered to be low importance or high importance, and is arranged to route backhaul traffic of high importance via one of the first wireless backhaul path and the at least one further wireless backhaul path that is chosen in dependence on path latency.

10. An apparatus as claimed in claim 7, wherein the backhaul management circuitry comprises traffic disassembly circuitry configured, in dependence on the type of traffic determined by the traffic type analysis circuitry, to disassemble a stream of backhaul traffic to be sent from the apparatus in order to form a first sub-stream to be sent via the first wireless backhaul path and a second sub-stream to be sent via the at least one further wireless backhaul path.

11. An apparatus as claimed in claim 10, further comprising:

downlink traffic reassembly circuitry, responsive to a first downlink sub-stream received via the third antenna system and a second downlink sub-stream received via said fourth antenna system, to aggregate together the first and second downlink sub-streams in order to form a stream of downlink backhaul traffic.

12. An apparatus as claimed in claim 1, wherein the devices of the mesh network are coupled via wireless mesh links that operate as backhaul links, and the fourth antenna system is arranged to establish a backhaul link with at least one device of the mesh network.

13. An apparatus as claimed in claim 1, wherein:

the devices of the mesh network are coupled via wireless mesh links that operate as fronthaul links;

the mesh network'"'"'s at least one point of access into the telecommunications network provides said at least one further wireless backhaul path; and

the fourth antenna system is arranged to establish a fronthaul link with at least one device of the mesh network.

14. An apparatus as claimed in claim 13, wherein the apparatus is arranged to form a cluster with one or more other devices of the mesh network, the cluster forming a virtual radio access network (RAN) for items of user equipment that connect to at least one antenna provided by the cluster.

15. An apparatus as claimed in claim 14, wherein the cluster is arranged so that at least one of the devices provides a media access control (MAC) layer that is shared with at least one other device within the cluster.

16. An apparatus as claimed in claim 14, further comprising coordination control circuitry to operate in coordination with coordination control circuitry in the other devices in the cluster to employ at least one technique to enhance spectral efficiency of communication with items of user equipment that connect to the cluster.

17. An apparatus as claimed in claim 16, wherein said at least one technique comprises a coordinated multipoint (CoMP) communication technique employing multiple of the antenna systems provided by the devices within the cluster.

18. An apparatus as claimed in claim 1, wherein the fourth antenna system is arranged to communicate using one of mm wave and microwave wireless signals.

19. An apparatus as claimed in claim 1, wherein the first and the second antenna systems are configured such that when the apparatus is deployed at a periphery of a building, the first sector extends into the building to provide enhanced availability of the telecommunications network to items of user equipment within the building, and the second sector extends externally to the building to provide an additional source of telecommunications network coverage to items of user equipment external to the building.

20. An apparatus as claimed in claim 19, wherein when the apparatus is deployed inside the building at said periphery, the second antenna system is configured to generate at least one beam pattern that propagates through said periphery to facilitate communication with at least one item of user equipment within said second sector.

21. An apparatus as claimed in claim 20, wherein each of the third antenna system and the fourth antenna system is configured to generate at least one beam pattern that propagates through said periphery.

22. An apparatus as claimed in claim 20, wherein the apparatus is deployed adjacent to a window at said periphery.

23. An apparatus as claimed in claim 22, wherein the apparatus is shaped so as to facilitate placement on a windowsill.

24. A method of operating an apparatus having first, second, third and fourth antenna systems to provide network coverage in a telecommunications network, comprising:

employing the first antenna system to provide a first sector of the telecommunications network;

employing the second antenna system to provide a second sector of the telecommunications network;

employing the third antenna system to communicate with a base station of the telecommunications network to provide a first wireless backhaul path for said first sector and said second sector;

employing the fourth antenna system to provide a wireless communication link to facilitate coupling of the apparatus into a mesh network of devices, the mesh network having at least one point of access into the telecommunications network such that the mesh network supports provision of at least one further wireless backhaul path for said first sector and said second sector;

in at least one mode of operation, controlling utilisation of the third antenna system and the fourth antenna system to provide backhaul connectivity to the telecommunications network for at least items of user equipment connected to the apparatus via the first and second antenna systems by performing a backhaul determination process to evaluate, for both said first wireless backhaul path and one or more routes through the mesh network to support said at least one further wireless backhaul path, at least one metric indicative of link quality, determining that said at least one metric indicative of link quality satisfies at least one condition, and using a combination of the first wireless backhaul path and the at least one further wireless backhaul path to provide the backhaul connectivity to the telecommunications network;

evaluating available capacity of the first wireless backhaul path and the at least one further wireless backhaul path;

determining, based on said evaluating, that the available capacity is greater than a threshold amount; and

allowing, based on said determining that the available capacity is greater than the threshold amount, the apparatus to act as a routing node within the mesh network to control usage of at least one of the third antenna system and the fourth antenna system to provide backhaul connectivity to the telecommunications network for items of user equipment connected to devices within the mesh network other than said apparatus.

25. An apparatus comprising:

first antenna means for providing a first sector of a telecommunications network;

second antenna means for providing a second sector of the telecommunications network;

third antenna means for communicating with a base station of the telecommunications network to provide a first wireless backhaul path for said first sector and said second sector;

fourth antenna means for providing a wireless communication link to facilitate coupling of the apparatus into a mesh network of devices, the mesh network having at least one point of access into the telecommunications network such that the mesh network supports provision of at least one further wireless backhaul path for said first sector and said second sector; and

backhaul management means for controlling, in at least one mode of operation, utilisation of the third antenna means and the fourth antenna means to provide backhaul connectivity to the telecommunications network for at least items of user equipment connected to the apparatus via the first and second antenna means,

wherein the backhaul management means comprises backhaul options analysis means for performing a backhaul determination process to evaluate, for both said first wireless backhaul path and one or more routes through the mesh network to support said at least one further wireless backhaul path, at least one metric indicative of link quality,

wherein the backhaul management means is configured, when said at least one metric indicative of link quality satisfies at least one condition, to use a combination of the first wireless backhaul path and the at least one further wireless backhaul path to provide the backhaul connectivity to the telecommunications network, and

wherein the backhaul management means further comprises traffic monitoring means for (i) evaluating available capacity of the first wireless backhaul path and the at least one further wireless backhaul path and (ii) determining, based on said evaluation, whether to allow the apparatus to act as a routing node within the mesh network, when acting as the routing node the apparatus being arranged to control usage of at least one of the third antenna means and the fourth antenna means to provide backhaul connectivity to the telecommunications network for items of user equipment connected to devices within the mesh network other than said apparatus.