Method and system for signaling in a heterogeneous network
AssigneeBlackBerry Limited
InventorsYufei Wu Blankenship, Yi Song, Youn Hyoung Heo, Yi Yu, Chandra Sekhar Bontu, Zhijun Cai
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Abstract
A method at a network element operating in a wireless network, wherein the network element is configured to transmit a default cell search signal at a default position in one or more subframes, the method comprising transmitting, by the network element, an auxiliary cell search signal in addition to the default cell search signal.
Claims23
A method at a network element operating in a wireless network, the method comprising:
- transmitting, by the network element, a default cell search signal, the default cell search signal comprising a default Synchronization Signal including a default Primary Synchronization Signal (‘PSS’) transmitted at symbol n1 of a first time slot and a default Secondary Synchronization Signal (‘SSS’) transmitted at a symbol n2 of the time slot, wherein (n2−n1) is equal to k;
- transmitting, by the network element, an auxiliary cell search signal, the auxiliary cell search signal comprising an auxiliary Synchronization Signal including an auxiliary PSS transmitted at symbol n3 in a second time slot and an auxiliary SSS transmitted at symbol n4 in the second time slot, wherein (n3−n4) is equal to k;
- receiving, at the network element, communication signals from a user equipment in response to the default cell search signal and the auxiliary cell search signal wherein the network element further signals to a user equipment to enable or disable detection of the auxiliary cell search signal.
A method at a user equipment (‘UE’) operating in a wireless network, the method comprising:
- detecting, by the UE, a default cell search signal, the default cell search signal comprising a default Primary Synchronization Signal (‘PSS’) at symbol n1 of a first time slot and a default Secondary Synchronization Signal (‘SSS’) at symbol n2 of the first time slot, wherein (n2−n1) is equal to k;
- detecting, by the UE, an auxiliary cell search signal, the auxiliary cell search signal comprising an auxiliary Synchronization Signal, the auxiliary Synchronization Signal including an auxiliary PSS at symbol n3 of a second time slot and an auxiliary SSS at subframe n4 of the second time slot, wherein (n3−n4) is equal to k;
- and
- utilizing, by the UE, information within the auxiliary cell search signal to detect a cell for the wireless network.
A network element operating in a wireless network, comprising:
- a processor;
- and
- a communications subsystem,
- wherein the processor and communications subsystem cooperate to:
- transmit a default cell search signal, the default cell search signal comprising a default Synchronization Signal including a default Primary Synchronization Signal (‘PSS’) transmitted at symbol n1 of a first time slot and a default Secondary Synchronization Signal (‘SSS’) transmitted at a symbol n2 of the first time slot, wherein (n2−n1) is equal to k;
- transmit an auxiliary cell search signal, the auxiliary cell search signal comprising an auxiliary Synchronization Signal including an auxiliary PSS transmitted at symbol n3 of a second time slot and an auxiliary SSS transmitted at symbol n4 of the second time slot, wherein (n3−n4) is equal to k
- receive, at the network element, communication signals from a user equipment in response to the default cell search signal and the auxiliary cell search signal wherein the network element further signals to a user equipment to enable or disable detection of the auxiliary cell search signal.
Dependencies are inferred from the claim text.