Enhanced synchronization signals for coverage enhancements of low cost user equipment
AssigneeSamsung Electronics Co., Ltd.
InventorsHongbo Si, Qiongjie Lin, Le Liu, Aris Papasakellariou
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Abstract
A method for a user equipment (UE) in a wireless communication system is provided. The method comprises receiving, from a base station (BS), re-synchronization signals (RSSs) over a downlink channel; identifying time-domain and frequency-domain resources used for the RSSs; and identifying a set of sequences used for constructing the RSSs from the time-domain and frequency-domain resources used for the RSSs.
Claims20
A user equipment (UE) in a wireless communication system, the UE comprising:
- a transceiver configured to receive, from a base station (BS), a re-synchronization signal (RSS) over a downlink channel;
- and
- a processor operably connected to the transceiver, the processor configured to:
- identify time-domain and frequency-domain resources used for the RSS;
- and
- identify a sequence used for constructing the RSS from the time-domain and frequency-domain resources used for the RSS,
- wherein the sequence used for constructing the RSS is a quadrature phase shift keying (QPSK) modulated pseudo-noise (PN) sequence scrambled by a cover code and with an initial condition including at least part of a physical cell identification (ID).
A base station (BS) in a wireless communication system, the BS comprising:
- a processor configured to:
- configure time-domain and frequency-domain resources used for a re-synchronization signal (RSS);
- generate a sequence to construct the RSS;
- and
- map the generated sequence to the time-domain and frequency-domain resources to be used for the RSS;
- and
- a transceiver operably connected to the processor, the transceiver configured to transmit, to a user equipment (UE), the RSS over a downlink channel,
- wherein the sequence used for constructing the RSS is a quadrature phase shift keying (QPSK) modulated pseudo-noise (PN) sequence scrambled by a cover code and with an initial condition including at least part of a physical cell identification (ID).
A method for a user equipment (UE) in a wireless communication system, the method comprising:
- receiving, from a base station (BS), a re-synchronization signal (RSS) over a downlink channel;
- identifying time-domain and frequency-domain resources used for the RSS;
- and
- identifying a sequence used for constructing the RSS from the time-domain and frequency-domain resources used for the RSS,
- wherein the sequence used for constructing the RSS is a quadrature phase shift keying (QPSK) modulated pseudo-noise (PN) sequence scrambled by a cover code and with an initial condition including at least part of a physical cell identification (ID).
Dependencies are inferred from the claim text.