Optimized mechanism for paging transmission and reception
First Claim
1. A method comprising:
- receiving information of a paging area by a user equipment (UE) requiring a coverage extension/coverage enhancement (CE) from a base station in a wireless network, wherein the paging area is a subset of a tracking area covered by a subset of one or more base stations or cells which are closest to the UE;
determining if there is one or more changes between the received paging area and a stored paging area of the UE;
notifying the base station if there is one or more paging area changes; and
receiving paging messages in the paging area, wherein each paging messages for the UE is transmitted repeatedly by a repetition number greater than one.
2 Assignments
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Accused Products
Abstract
Methods and apparatus are provided for paging transmission and reception for UEs requiring coverage extension/coverage enhancement. In one novel aspect, the UE reports the CE status to the MME. CE level related information and the corresponding cell ID are provided from eNB to MME. MME sends paging information including the repetition number to all eNBs in the corresponding tracking area when paging the UE. In another novel aspect, a paging area is used for CE UEs. The UE receives paging area information, notifies the network, and updates the stored paging area information upon detecting changes between the received and the stored paging areas. In another embodiment, the UE reports its CE status upon detecting CE status changes. The eNB stores UE CE information and forwards it to neighboring eNBs in the same paging area. The eNB pages UEs on its CE UE list with repetition while paging other UEs normally.
19 Citations
24 Claims
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1. A method comprising:
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receiving information of a paging area by a user equipment (UE) requiring a coverage extension/coverage enhancement (CE) from a base station in a wireless network, wherein the paging area is a subset of a tracking area covered by a subset of one or more base stations or cells which are closest to the UE; determining if there is one or more changes between the received paging area and a stored paging area of the UE; notifying the base station if there is one or more paging area changes; and receiving paging messages in the paging area, wherein each paging messages for the UE is transmitted repeatedly by a repetition number greater than one. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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storing information of a paging area by a base station, wherein the paging area is a geographic area covered by a cluster of neighboring base station, and wherein the paging area is a subset of a tracking area covered by a subset of one or more base stations or cells which are closest to one or more corresponding UEs; storing a coverage extension/coverage enhancement (CE) user equipment (UE) list comprising UEs requiring CE, wherein repetition transmission for each transmission is used for UEs requiring CE; updating the CE UE list upon detecting triggering event; and paging the UEs on the CE UE list repeatedly by a repetition number greater than one. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A user equipment (UE) comprising
a transceiver that transmits and receives radio signals via a first radio access link; -
an information storage circuit that stores information of a stored paging area; a paging area tracker circuit that receives information of a paging area from a base station when the UE requires coverage extension/coverage enhancement (CE), wherein the paging area is covered by a subset of one or more base stations or cells which are closest to the UE, determines if there is one or more changes between the paging area and the stored paging area of the UE, and notifies the base station if there is one or more paging area changes; and a pager circuit that receives and processes paging messages in the paging area, wherein the page messages are transmitted repeatedly by a repetition number greater than one. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification