Providing secondary coverage in a mobile communication system
View Patent ↗Example methods, apparatus, articles of manufacture and systems for providing secondary coverage in a mobile communication system are disclosed. Example methods for a first device to provide secondary coverage in a mobile communication system include transmitting a secondary coverage signal and receiving a presence indication from a second device. Such example methods can also include reporting the presence indication to an access node of the mobile communication system. Such example methods can further include receiving information from the access node to enable relay node functionality in the first device in response to reporting the presence indication to the access node.
1. A method for a first mobile device to communicate with a second mobile device, the method comprising:
transmitting, at the first mobile device, a first signal indicating an opportunity for the second mobile device to transmit a second signal, the first mobile device having primary coverage from a first access node of a mobile communication system, the second mobile device not having primary coverage from any access node of the mobile communication system;
receiving, at the first mobile device and in response to the first signal, the second signal from the second mobile device, wherein the second signal comprises a presence indication that indicates the second mobile device is requesting secondary coverage in the mobile communication system; and
reporting, from the first mobile device, the presence indication that indicates the second mobile device is requesting secondary coverage, wherein the presence indication is reported to a network node using an information element that indicates receipt of the presence.
2. A method as defined in claim 1 , further comprising relaying information between the second mobile device and the first access node in response to receiving the second signal.
3. A method as defined in claim 2 , wherein the information is first information, and further comprising receiving second information from the first access node to enable relay node functionality in the first mobile device.
4. A method as defined in claim 3 , wherein the second information is received after the reporting of the presence indication to the first access node.
5. A method as defined in claim 1 , wherein the first signal is a secondary coverage signal indicating that the first mobile device is able to provide secondary coverage in the mobile communication system.
6. A method as defined in claim 5 , wherein the mobile communication system supports long term evolution (LTE) functionality, and the secondary coverage signal is transmitted in a number of resource blocks of an LTE subframe.
7. A method as defined in claim 5 , wherein the secondary coverage signal is a first secondary coverage signal, and further comprising transmitting a second secondary coverage signal that is to indicate timing associated with when the first mobile device expects to receive the second signal.
8. A method as defined in claim 1 , wherein reporting the presence indication to the first access node comprises:
including an information element indicating receipt of the presence; and
transmitting the information element to the first access node.
9. A method for a first mobile device to obtain secondary coverage in a mobile communication system, the method comprising:
receiving a secondary coverage signal from a second mobile device;
transmitting, to the second mobile device, a presence indication in response to receiving the secondary coverage signal from the second mobile device, wherein the presence indication indicates that the first mobile device is requesting secondary coverage in the mobile communication system; and
obtaining secondary coverage from the second mobile device after transmitting the presence indication.
10. A method as defined in claim 9 , wherein the mobile communication system supports long term evolution (LTE) functionality, and the secondary coverage signal is transmitted in a number of resource blocks of an LTE subframe.
11. A method as defined in claim 10 , wherein the secondary coverage signal is a first secondary coverage signal indicating that the second mobile device is able to provide secondary coverage in the mobile communication system, and further comprising receiving a second secondary coverage signal from the second mobile device that is to indicate timing associated with when the second mobile device expects to receive the presence indication.