Abstract
A mobile communications system for communicating data to and/or from mobile communications devices. The mobile communications system comprises one or more base stations each of which includes a transmitter and a receiver operable to provide a wireless access interface for communicating data to and/or from the mobile communications devices the wireless access interface providing on a downlink a host carrier the host carrier providing a plurality of resource elements across a first frequency range for communicating data; and a first and second mobile communications devices. The first mobile communications device 3G or 4G and is operable to receive downlink communications via the host carrier. The wireless access interface provided by the one or more base stations is arranged to provide a virtual carrier the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range and the second mobile communications device is a machine type communication device (MTC) operable upon detection of the virtual carrier to receive downlink communications via the virtual carrier. The invention aims to allow the less complex MTC device to communicate using the long term evolution (LTE) type networks.
A mobile communications system for communicating data to and/or from mobile communications devices. The mobile communications system comprises one or more base stations each of which includes a transmitter and a receiver operable to provide a wireless access interface for communicating data to and/or from the mobile communications devices the wireless access interface providing on a downlink a host carrier the host carrier providing a plurality of resource elements across a first frequency range for communicating data; and a first and second mobile communications devices. The first mobile communications device is operable to receive downlink communications via the host carrier. The wireless access interface provided by the one or more base stations is arranged to provide a virtual carrier the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range and the second mobile communications device is operable upon detection of the virtual carrier to receive downlink communications via the virtual carrier.
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 21/07/2016 | ISLD-201606-011 | SONY CORP | Yes | Basis Patent | ||||
Specification Information
Specification Information
Technologies
Family Information
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Technologies
Resource configuration
Product
Use Cases
Wireless communication
Services
Claim
1. A mobile communications system for communicating data to and/or from mobile communications devices, the mobile communications system comprising:', 'one or more base stations, each of which includes a transmitter and a receiver operable to provide a wireless access interface for communicating data to and/or from the mobile communications devices, the wireless access interface providing on a downlink a host carrier, the host carrier providing a plurality of resource elements across a first frequency range for communicating data, and', 'a first and second mobile communications devices,', 'wherein:', 'the first mobile communications device is operable to receive downlink', 'communications via the host carrier,', 'the wireless access interface provided by the one or more base stations is arranged to provide a virtual carrier, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range, and', 'the second mobile communications device is operable, upon detection of the virtual carrier, to receive downlink communications via the virtual carrier.
2. A mobile communications system according to claim 1, wherein', 'the first mobile communications device comprises a receiver of a first type, wherein receivers of the first type have a bandwidth for contemporaneously receiving data which is at least the bandwidth of the first frequency range; and', 'the second mobile communications device comprises a receiver of a second type, wherein receivers of the second type have a bandwidth for contemporaneously receiving data which is less than or equal to the bandwidth of the second frequency range.
3. A mobile communications system according to claim 1 or 2, wherein the wireless access interface provided by the one or more base stations is further arranged to provide a plurality of virtual carriers.
4. A mobile communications system according to any preceding claim, wherein the virtual carrier is provided in the same frequency range as a physical broadcast channel for the first mobile communications device to connect to one of the one or more base stations.
5. A mobile communications system according to any preceding claim, wherein one or more resource elements comprise a virtual carrier signal indicating that the wireless access interface provides one or more virtual carriers.
6. A mobile communications system according to claim 5, wherein the second mobile communications device is operable to scan the first frequency range for a virtual carrier upon detection of a virtual carrier signal.
7. A mobile communications system according to claim 5 or 6, wherein the signal comprises an indication of the location of a virtual carrier within the first frequency range and/or an indication of the bandwidth of a virtual carrier.
8. A mobile communications system according to any of claims 5 to 7, wherein the second mobile communications device is operable, upon detection of a virtual carrier signal indicating a virtual carrier frequency range, to configure its receiver to receive data transmitted in the virtual carrier frequency range.
9. A mobile communications system according to any of claims 5 to 8, wherein the one or more resource elements for providing the virtual carrier signal are provided in a physical broadcast channel.', 'I10. A mobile communications system according to claim 9, wherein the physical broadcast channel is a channel for the first mobile communications device to connect to one of the one or more base stations.1. A mobile communications system according to any of claims 5 to 10, wherein the one or more resource elements for providing a virtual carrier signal in respect of a certain virtual carrier are provided within the certain virtual carrier
12. A mobile communications system according to any preceding claims, the system being arranged in accordance with 3GPP Long Term Evolution specifications
13. A mobile communications system according to any of claims 5 to 12, wherein the virtual carrier signal is not provided in every sub-frame
14. A mobile communications system according to claims 1 1 and 12 , wherein the virtual carrier signal is provided in some or all sub-carriers across the virtual carrier and in one or more OFDM symbols
15. A mobile communications system according to any of claims 1 to 14, wherein a receiver of a second type has a bandwidth for contemporaneously receiving communications spanning at least six resource blocks and fewer than one hundred resource blocks
16. A mobile communications system according to any of claims 1 to 15, wherein the virtual carrier has a bandwidth size of at least one resource block and of fewer than one hundred resource blocks
17. A mobile communications system according to claim 16, wherein the virtual carrier has a bandwidth size of six resource blocks
18. A mobile communications system according to any preceding claim, wherein', 'downlink data is provided in time-adjacent sub-frames;', 'the virtual carrier is provided in the second frequency range in a first sub-frame; and the virtual carrier is provided in a third frequency range in the sub-frame after the first sub-frame, wherein the third frequency range is within and smaller than the first frequency range
19. A mobile communications system according to claim 18, wherein the virtual carrier bandwidth and/or range changes at regular interval and, optionally, the virtual carrier bandwidth and/or range changes every sub-frame or every ten sub-frames.
20. A mobile communications system according to claim 18 or 19, wherein the third frequency range is the same as the second frequency range.
21. A mobile communications system according to claim 18, 19 or 20, wherein the change of frequency range from the second frequency range to the third frequency range is based on a pseudo-random algorithm.
22. A mobile corrimunications device for use in a mobile communications system according to any of claims 1 to 21.
23. A mobile communications device having a receiver of the second type for use in a mobile communications system according to any of claims 1 to 21.
24. A method of communicating data to and/or from mobile communications devices in a mobile communications system, the method comprising:', 'providing a wireless access interface for communicating data to and/or from the mobile communications devices, the wireless access interface providing on a downlink a host carrier, the host carrier providing a plurality of resource elements across a first frequency range,', 'transmitting data for a first group of mobile communications devices, wherein the data is distributed within the plurality of resource elements across the first frequency range;', 'a first mobile communications device in the first group of mobile communications devices receiving downlink communications via the host carrier;', 'providing a virtual carrier via the wireless access interface, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range; and', 'transmitting data for a second group of mobile communications devices via the at least one virtual carrier.', 'a second mobile communications device in the second group of mobile', 'communications devices detecting the virtual carrier; and', 'the second mobile communications device receiving downlink communications via the virtual carrier.
25. A method according to claim 24, the method further comprising providing a plurality of virtual carriers via the wireless access interface.
26. A method according to claim 24 or 25, wherein the virtual channel is provided channel in the same frequency range as a physical broadcast channel for devices in the first group of mobile communications devices to connect to the mobile communications network.
27. A method according to any of claims 24 to 26, wherein
the first mobile communications device comprises a receiver of a first type, wherein receivers of the first type have a bandwidth for contemporaneously receiving data which is at least the bandwidth of the first frequency range; and', 'the second mobile communications device comprises a receiver of a second type, wherein receivers of the second type have a bandwidth for contemporaneously receiving data which is less than or equal to the bandwidth of the second frequency range.
28. A method according to any of claims 24 to 27, the method further comprising providing in one or more resource elements a virtual carrier signal indicating that the wireless access interface provides a virtual carrier.
29. A method according to claim 28, wherein the second mobile communications device detecting the virtual carrier comprises:', 'the second mobile communications device detecting a virtual carrier signal; and the second mobile communications device scanning the first frequency range for a virtual carrier.
30. A method according to any of claims 28 to 29, wherein the mobile communications device detecting the virtual carrier comprises:', 'the second mobile communications device detecting a virtual carrier signal indicating a virtual carrier frequency range; and', 'the second mobile communications device configuring its receiver to receive communications transmitted in the virtual carrier range.
31. A method according to any of claims 28 to 30, wherein the signal comprises an indication of the location of a virtual carrier within the first frequency range and/or an indication of the bandwidth of a virtual carrier. i
32. A method according to any of claims 28 to 31, wherein the method further comprises providing the virtual carrier signal in a physical broadcast channel.
33. A method according to claim 32, wherein the physical broadcast channel is a channel for the first mobile communications device to connect to the mobile communications system.
34. A method according to any of claims 28 to 33, wherein the method further comprises providing the virtual carrier signal in respect of a certain virtual carrier within the certain virtual carrier.
35. A method according to any of claims 24 to 34, wherein the mobile communications system is a system arranged in accordance with 3 GPP Long Term Evolution specifications.
36. A method according to claimto any of claims 28 to 5, wherein the virtual carrier signal is not provided in every sub-frame.
37. A method according to claim 35 and 34, wherein the virtual carrier signal is provided in some or all sub-carriers across the virtual carrier and in one or more OFDM symbols.
38. A method according to any of claims 24 to 37, wherein the virtual carrier has a bandwidth size of at least one resource block and of fewer than one hundred resource blocks.
39. A method according to claim 38 wherein the virtual carrier has a bandwidth size of six resource blocks.
40. A method according to any of claims 24 to 39, wherein the method further comprises providing the downlink data in time-adjacent sub-frames;
allocating to the virtual carrier one or more resource elements within the second frequency range for a first sub-frame; and', 'allocating to the virtual carrier one or more resource elements within a third frequency range for the sub-frame after the first sub-frame, wherein the third frequency range is within and smaller than the first frequency range.
41. A method according to claim 40, wherein the virtual carrier bandwidth and/or range changes at regular interval and, optionally, the virtual carrier bandwidth and/or range changes every sub-frame or every ten sub-frames.
42. A method according to claim 40 or 41, wherein the third frequency range is the same as the second frequency range.
43. A method according to any of claims 40, 41 or 42, wherein the method further comprises:', 'changing the frequency range from the second frequency range to the third frequency range based on a pseudo-random algorithm.
44. A mobile communications system for communicating data to and/or from mobile communications devices substantially as hereinbefore described with reference to the drawings.
45. A mobile communications device substantially as hereinbefore described with reference to the drawings.
46. A method of communicating data to and/or from mobile communications devices substantially as hereinbefore described with reference to the drawings.
47. An apparatus for communicating data to and/or from mobile communications devices in a mobile communications system, the apparatus comprising:', 'means for providing a wireless access interface for communicating data to and/or from the mobile communications devices, the wireless access interface providing on a downlink a host carrier, the host carrier providing a plurality of resource elements across a first frequency range,', 'means for transmitting data for a first group of mobile communications devices, wherein the data is distributed within the plurality of resource elements across the first frequency range;', 'a first mobile communications device in the first group of mobile communications devices receiving downlink communications via the host carrier;', 'means for providing a virtual carrier via the wireless access interface, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range; and', 'means for transmitting data for a second group of mobile communications devices via the at least one virtual carrier.', 'a second mobile communications device in the second group of mobile', 'communications devices detecting the virtual carrier; and', 'the second mobile communications device receiving downlink communications via the virtual carrier.']
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SUMMARY
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.