Wireless Network Synchronization
Provided are various implementations of a wireless network synchronization solution. In one implementation, such a solution includes a mobile communication device including a receiver for use with the wireless network. The receiver is configured to receive a downlink communication from the wireless network, to detect a primary synchronization signal (PSS) at a PSS subframe symbol of the downlink communication, and to detect a secondary synchronization signal (SSS) at an SSS subframe symbol of the downlink communication. The receiver is further configured to identify the downlink communication as being duplexed using one of a first duplexing mode and a second duplexing mode when the PSS subframe symbol follows the SSS subframe symbol, and to identify the downlink communication as being duplexed using the other of the first duplexing mode and the second duplexing mode when the PSS subframe symbol precedes the SSS subframe symbol.
1 . A mobile communication device comprising:
a receiver configured to:
receive a downlink communication from a wireless network;
detect a primary synchronization signal (PSS) at a PSS subframe symbol of the downlink communication;
detect a secondary synchronization signal (SSS) at an SSS subframe symbol of the downlink communication;
identify the downlink communication as being duplexed using one of a first duplexing mode and a second duplexing mode when the PSS subframe symbol follows the SSS subframe symbol;
identify the downlink communication as being duplexed using the other of the first duplexing mode and the second duplexing mode when the PSS subframe symbol precedes the SSS subframe symbol.
2 . The mobile communication device of claim 1 , wherein the wireless network comprises a Long Term Evolution (LTE) New Carrier Type (NCT) network.
3 . The mobile communication device of claim 1 , wherein the first duplexing mode is one of Frequency-Division Duplexing (FDD) and Time-Division Duplexing (TDD).
4 . The mobile communication device of claim 1 , wherein the PSS subframe symbol and the SSS subframe symbol are detected at adjoining symbol periods of the downlink communication.
5 . The mobile communication device of claim 1 , wherein the PSS subframe symbol is detected at a second Orthogonal Frequency-Division Multiplexing (OFDM) symbol period in a plurality of subframes of the downlink communication.
6 . The mobile communication device of claim 1 , wherein the SSS subframe symbol is detected at a second OFDM symbol period in a plurality of subframes of the downlink communication.
7 . The mobile communication device of claim 1 , wherein the PSS subframe symbol and the SSS subframe symbol are detected at adjoining OFDM symbol periods of a subframe zero (subframe 0) and a subframe five (subframe 5) of a radio frame of the downlink communication.
8 . A method for identifying a downlink communication from a wireless network, the method comprising:
receiving the downlink communication from the wireless network;
detecting a primary synchronization signal (PSS) at a PSS subframe symbol of the downlink communication;
detecting a secondary synchronization signal (SSS) at an SSS subframe symbol of the downlink communication;
identifying the downlink communication as being duplexed using one of a first duplexing mode and a second duplexing mode when the PSS subframe symbol follows the SSS subframe symbol;
identifying the downlink communication as being duplexed using the other of the first duplexing mode and the second duplexing mode when the PSS subframe symbol precedes the SSS subframe symbol.
9 . The method of claim 8 , wherein the wireless network comprises a Long Term Evolution (LTE) New Carrier Type (NCT) network.
10 . The method of claim 8 , wherein the first duplexing mode is one of Frequency-Division Duplexing (FDD) and Time-Division Duplexing (TDD).
11 . The method of claim 8 , wherein the PSS subframe symbol and the SSS subframe symbol are detected at adjoining symbol periods of the downlink communication.
12 . The method of claim 8 , wherein the PSS subframe symbol is detected at a second Orthogonal Frequency-Division Multiplexing (OFDM) symbol period of a plurality of subframes of the downlink communication.
13 . The method of claim 8 , wherein the SSS subframe symbol is detected at a second OFDM symbol period of a plurality of subframes of the downlink communication.
14 . The method of claim 8 , wherein the PSS subframe symbol and the SSS subframe symbol are detected at adjoining OFDM symbol periods of a subframe zero (subframe 0) and a subframe five (subframe 5) of a radio frame of the downlink communication.
15 . A wireless network comprising:
a network base station configured to provide a downlink communication to a mobile communication device, the downlink communication provided by the base station including a primary synchronization signal (PSS) at a PSS subframe symbol of the downlink communication, and a secondary synchronization signal (SSS) at an SSS subframe symbol of the downlink communication;
wherein the PSS subframe symbol follows the SSS subframe symbol when the downlink communication is duplexed using a first duplexing mode, and wherein the PSS subframe symbol precedes the SSS subframe symbol when the downlink communication is duplexed using a second duplexing mode.
16 . The wireless network of claim 15 , wherein the wireless network comprises a Long Term Evolution (LTE) New Carrier Type (NCT) network.
17 . The wireless network of claim 15 , wherein the first duplexing mode is one of Frequency-Division Duplexing (FDD) and Time-Division Duplexing (TDD).
18 . The wireless network of claim 15 , wherein the PSS subframe symbol and the SSS subframe symbol are included at adjoining symbol periods of the downlink communication.
19 . The wireless network of claim 15 , wherein the PSS subframe symbol is included at a second Orthogonal Frequency-Division Multiplexing (OFDM) symbol period of a plurality of subframes of the downlink communication.
20 . The wireless network of claim 15 , wherein the SSS subframe symbol is included at a second OFDM symbol period of a plurality of subframes of the downlink communication.