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US 10,708,974 B2Granted
Radio access network node and method—time coordinated cells for extended discontinuous receive (eDRX)
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJohn Walter Diachina, Paul Schliwa-Bertling, Nicklas Johansson
Life of this patent
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Abstract
A core network node (e.g., Serving GPRS Support Node (SGSN)), a radio access network node (e.g., Base Station Subsystem), and various methods are described herein for realizing time coordinated cells and maintaining a reliability of paging a wireless device (e.g., Machine Type Communications (MTC) device, mobile station).
Claims16
A radio access network (RAN) node, the RAN node comprising:
- a processor;
- and,
- a memory that stores processor-executable instructions, wherein the processor interfaces with the memory to execute the processor-executable instructions, whereby the RAN node is operable to:
- calculate a time remaining until a next paging opportunity for a wireless device within a paging area of the wireless device, wherein the calculating uses an International Mobile Subscriber Identity (IMSI) of the wireless device, an extended Discontinuous Receive (eDRX) cycle length of the wireless device, and a coverage class of the wireless device that are received from a core network (CN) node;
- and
- transmit, to the CN node, information indicating the time remaining until the next paging opportunity for the wireless device.
3 more elements
A method in a radio access network (RAN) node, the method comprising:
- calculating a time remaining until a next paging opportunity for a wireless device within a paging area of the wireless device, wherein the calculating uses an International Mobile Subscriber Identity (IMSI) of the wireless device, an extended Discontinuous Receive (eDRX) cycle length of the wireless device, and a coverage class of the wireless device that are received from a core network (CN) node;
- and
- transmitting, to the CN node, information indicating the time remaining until the next paging opportunity for the wireless device.
A radio access network (RAN) node comprising:
- a processor;
- and,
- a memory that stores processor-executable instructions, wherein the processor interfaces with the memory to execute the processor-executable instructions, whereby the RAN node is operable to:
- receive, from a core network (CN) node, a dummy paging request associated with a wireless device, wherein the dummy paging request includes an International Mobile Subscriber Identity (IMSI) of the wireless device and an extended Discontinuous Receive (eDRX) cycle length of the wireless device;
- calculate a time remaining until a next paging opportunity for the wireless device using the IMSI of the wireless device and the eDRX cycle length of the wireless device;
- and,
- send, to the CN node, a dummy paging response including the time remaining until the next paging opportunity for the wireless device.
4 more elements
A method in a radio access network (RAN) node, the method comprising:
- receiving, from a core network (CN) node, a dummy paging request associated with a wireless device, wherein the dummy paging request includes an International Mobile Subscriber Identity (IMSI) of the wireless device and an extended Discontinuous Receive (eDRX) cycle length of the wireless device;
- calculating a time remaining until a next paging opportunity for the wireless device, wherein the calculating uses the IMSI of the wireless device and the eDRX cycle length of the wireless device;
- and,
- sending, to the CN node, a dummy paging response including the time remaining until the next paging opportunity for the wireless device.
1 more element
Dependencies are inferred from the claim text.