Switchable DVB-H receiver
View Patent ↗One embodiment provides a method of providing low power operations in a switchable Digital Video Broadcasting—Handheld (DVB-H) receiver operable as a single receiver and as a diversity receiver includes operating the switchable DVB-H receiver in a single receiver mode in a first coverage region, the first coverage region corresponding to conditions in which both the single receiver as well as the diversity receiver satisfy a predetermined performance criteria, and switching the switchable DVB-H receiver to a diversity receiver mode in a second coverage region, the second coverage region corresponding to conditions in which the diversity receiver satisfies the predetermined performance criteria and the single receiver does not satisfy the predetermined performance criteria.
1. A method of providing low power operations in a switchable Digital Video Broadcasting—Handheld (DVB-H) receiver operable as a single receiver and as a diversity receiver, said method comprising:
operating said switchable DVB-H receiver in a single receiver mode in a first coverage region, said first coverage region corresponding to a condition in which both said single receiver as well as said diversity receiver simultaneously satisfy a predetermined performance criteria; and
switching said switchable DVB-H receiver to a diversity receiver mode in a second coverage region, said second coverage region corresponding to conditions in which said diversity receiver satisfies said predetermined performance criteria and said single receiver does not satisfy said predetermined performance criteria,
wherein said predetermined performance criteria is based on Physical Layer (PHY) metrics, wherein said PHY metrics comprise, a Bit Error Rate (BER) and a Packet Error Rate (PER), wherein said predetermined performance criteria comprises said BER less than a threshold value, and wherein said switchable DVB-H receiver stores any of program specific information and service information comprising information about digital content available for viewing.
2. The method of claim 1 , further comprising operating said switchable DVB-H receiver in said single receiver mode in a third coverage region, said third coverage region corresponding to conditions in which neither said single receiver nor said diversity receiver satisfy said predetermined performance criteria.
3. The method of claim 2 , wherein said switchable DVB-H receiver is operated in said single receiver mode in said third coverage region, based on a channel condition in at least one channel of said diversity receiver.
4. The method of claim 3 , wherein channels of said diversity receiver are combined using Maximal Ratio Combining (MRC).
5. A switchable Digital Video Broadcasting—Handheld (DVB-H) receiver operable as a single receiver with an effective operating area defined by a first coverage map and as a diversity receiver within an effective operating area defined by a second coverage map, said DVB-H receiver comprising:
a processor operating said DVB-H receiver in a single receiver mode in a first coverage region, said first coverage region corresponding to a condition in which both said single receiver as well as said diversity receiver simultaneously satisfy a predetermined performance criteria through an overlapping region of said first coverage map and said second coverage map;
a switching mechanism switching operations of said processor from said single receiver mode to a diversity receiver mode in a second coverage region, said second coverage region corresponding to a condition in which said diversity receiver satisfies said predetermined performance criteria and said single receiver does not satisfy said predetermined performance criteria through a region of said second coverage map that is outside, and thereby does not overlapping with, said first coverage map; and
a memory component that stores any of program specific information and service information comprising information about digital content available for viewing.
6. The switchable DVB-H receiver of claim 5 , wherein said processor operates in said single receiver mode in a third coverage region, said third coverage region corresponding to conditions in which neither said single receiver nor said diversity receiver satisfy said predetermined performance criteria through a region that is outside of both said first coverage map and said second coverage map.
7. The switchable DVB-H receiver of claim 5 , wherein said predetermined performance criteria is based on Physical Layer (PHY) metrics.
8. The switchable DVB-H receiver of claim 7 , wherein said PHY metrics comprise a Signal-to-Noise Ratio (SNR), a Bit Error Rate (BER), and a Packet Error Rate (PER).
9. The switchable DVB-H receiver of claim 8 , wherein said predetermined performance criteria comprises said BER less than a threshold value.
10. The switchable DVB-H receiver of claim 6 , wherein said switchable DVB-H receiver is operated in said single receiver mode in said third coverage region, based on a channel condition in at least one channel of said diversity receiver.
11. The switchable DVB-H receiver of claim 10 , wherein channels of said diversity receiver are combined using Maximal Ratio Combining (MRC).
12. A mobile terminal comprising:
a digital video broadcasting—handheld (DVB-H) receiver for receiving a digital video broadcast signal operable as a single receiver and as a diversity receiver;
a memory component for storing the received digital video broadcast signal, wherein said memory component stores any of program specific information and service information comprising information about digital content available for viewing; and
a processor that:
operates said DVB-H receiver in a single receiver mode in a first coverage region, said first coverage region corresponding to a conditions in which both said single receiver as well as said diversity receiver simultaneously satisfy a predetermined performance criteria;
switches said DVB-H receiver to a diversity receiver mode in a second coverage region, said second coverage region corresponding to conditions in which said diversity receiver satisfies said predetermined performance criteria and said single receiver does not satisfy said performance criteria; and
operates said DVB-H receiver in said single receiver mode in a third coverage region, said third coverage region corresponding to conditions in which neither said single receiver nor said diversity receiver satisfy said predetermined performance criteria,
wherein said predetermined performance criteria is based on Physical Layer (PHY) metrics that includes a Bit Error Rate (BER) and a Packet Error Rate (PER), and
wherein said predetermined performance criteria comprises said BER less than a threshold value, wherein said threshold value is 1×10 −4 and a PER not equal to zero.
13. The mobile terminal of claim 12 , wherein said switchable DVB-H receiver is operated in said single receiver mode in said third coverage region, based on a channel condition in at least one channel of said diversity receiver.
14. The mobile terminal of claim 13 , wherein channels of said diversity receiver are combined using Maximal Ratio Combining (MRC).
15. The mobile terminal of claim 12 , wherein said PHY metrics further includes a Signal-to-Noise Ratio (SNR).