Multi-user, multi-mode baseband signaling methods, timing/frequency synchronization, and receiver architectures

• US 8,411,656 B2
• Filed: 06/21/2010
• Issued: 04/02/2013
• Est. Priority Date: 06/21/2009
• Status: Active Grant

• Current Assignee: Ablaze Wireless Corporation
• Original Assignee: Ablaze Wireless, Inc.
• Inventors: Liu, Jung-Tao
• Primary Examiner(s): Sefcheck, Gregory
• Assistant Examiner(s): NGUYEN, MINH TRANG T
• Application Number:
  US12/819,726
• Publication Number:
  US 20100322218A1
• Time in Patent Office: 1,016 Days
• Field of Search: None
• US Class Current: 370/338
• CPC Class Codes: H04B 1/7103 the interference being multiple access interference
• CPC Class Codes: H04J 11/0036 at the receiver
• CPC Class Codes: H04L 25/03006 Arrangements for removing intersymbol interference

Abstract

A femtocell wireless signaling/data mesh network for multi-user, multi-mode baseband signaling methods, timing/frequency synchronization, and receiver architectures is disclosed. The femtocell wireless signaling/data mesh network includes a plurality of femtocells connected by a plurality of wireless links. A first femtocell of the plurality of femtocells directly communicates with a second femtocell of the plurality of femtocells via a wireless link between the first femtocell and the second femtocell.

Claims

1. A femtocell wireless signaling/data mesh network, comprising:

a plurality of femtocells connected by a plurality of wireless links, a first femtocell of the plurality of femtocells directly communicating with a second femtocell of the plurality of femtocells via a wireless link between the first femtocell and the second femtocell; and

a signaling and data router module coupled to the second wireless module and the first wireless link module to process a signaling and data routing;

wherein the first femtocell comprises a first wireless link module and a first wireless link antenna, the first wireless link module communicates with the second femtocell via the first wireless link antenna to form the wireless link between the first femtocell and the second femtocell, the first femtocell further comprises a second wireless module and a second wireless antenna, the second wireless module communicates with a user equipment via the second wireless antenna;

the signaling and data router module is used for directing a user data and signaling protocol to either a core network or the first wireless link when user data and a signaling are for the second femtocell.

2. The femtocell wireless signaling/data mesh network of claim 1, wherein the plurality of wireless links is based on a point-to-point wireless communication system or a point-to-multi-point wireless communication system.

3. The femtocell wireless signaling/data mesh network of claim 1, wherein the plurality of wireless links is based on Wi-Fi technology, WiMAX technology, CDMA technology, GSM technology, GPRS technology, IS95 technology, or Bluetooth technology.

4. The femtocell wireless signaling/data mesh network of claim 1, wherein the plurality of femtocells is connected to a concentrator/aggregator of a cellular network, the communication between the first femtocell and the second femtocell offloads the traffic between the concentrator/aggregator and the first femtocell and the traffic between the concentrator/aggregator and the second femtocell.

5. The femtocell wireless signaling/data mesh network of claim 1, wherein a signaling and data exchange between the first femtocell and the second femtocell is realized via the wireless link between the first femtocell and the second femtocell.

6. The femtocell wireless signaling/data mesh network of claim 1, wherein the first femtocell maintains a list of neighboring femtocell information comprising the second femtocell.

7. The femtocell wireless signaling/data mesh network of claim 1, wherein the first femtocell acquires neighboring femtocell signals comprising a signal of the second femtocell based on a slow frequency hopping method.

8. The femtocell wireless signaling/data mesh network of claim 1, wherein the first femtocell functions as a Radio Network Controller (RNC) entity, the RNC entity is a Serving Radio Network Controller (SRNC) entity, a Drift Radio Network Controller (DRNC) entity, or a Controlling Radio Network Controller (CRNC) entity.