Abstract
A cellular communication system ( 100) comprises management logic (146) having broadcast mode logic (150) arranged to support a common cell identifier reuse pattern for broadcast transmissions amongst a cluster of communication cells. A plurality of wireless serving communication units is operably coupled to the management logic. At least one wireless communication unit comprises a receiver for receiving a broadcast signal from both a first serving wireless communication unit and a second serving wireless communication unit wherein both the first serving wireless communication unit and second serving wireless communication unit use a common cell identifier (215) reuse pattern for broadcast transmissions to be used by the at least one wireless communication unit in receiving broadcast communication across the cluster of communication cells. The at least one wireless communication unit further comprises logic arranged to detect the broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 22/04/2012 | ISLD-201204-010 | GENERAL DYNAMICS CORP |
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Specification Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Broadcast/Multicast
Product
Use Cases
Wireless communication
Services
Claim
1. A cellular communication system (100) comprising: management logic (146) having broadcast mode logic (150) arranged to support a common cell identifier reuse pattern for broadcast transmissions amongst a plurality of communication cells;
a plurality of wireless serving communication units operably coupled to the management logic;
wherein at least one wireless communication unit comprises a receiver for receiving a broadcast signal from both a first serving wireless communication unit and a second serving wireless communication unit wherein both the first serving wireless communication unit and second serving wireless communication unit use a common cell identifier (215) reuse pattern for broadcast transmissions to be used by the at least one wireless communication unit in receiving broadcast communication across the cluster of communication cells and the at least one wireless communication unit further comprises logic arranged to detect the broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.', 'a plurality of wireless serving communication units operably coupled to the management logic;', 'wherein at least one wireless communication unit comprises a receiver for receiving a broadcast signal from both a first serving wireless communication unit and a second serving wireless communication unit wherein both the first serving wireless communication unit and second serving wireless communication unit use a common cell identifier (215) reuse pattern for broadcast transmissions to be used by the at least one wireless communication unit in receiving broadcast communication across the cluster of communication cells and the at least one wireless communication unit further comprises logic arranged to detect the broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.
2. The communication system of claim 1 wherein the at least one wireless communication unit is arranged to use the common cell identifier in each downlink transmission resource in all clusters of communication cells to support receiving of the broadcast communication.
3. The communication system of claim 1 wherein the common cell identifier is mapped to at least one scrambling code and at least one pilot sequence to be used in the cluster of communication cells by the at least one wireless communication unit.
4. The communication system of claim 1 wherein the logic of the at least one wireless communication unit comprises first detection logic arranged to detect the broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in a first mode of operation and the wireless communication unit further comprises second detection logic arranged to detect unicast communication using a second communication cell identifier in a second mode of operation, such that the first detection logic is adapted to tolerate a higher multipath delay of received signals in the first mode of operation than the second detection logic arranged to communicate in the second mode of operation.
5. The communication system of claim 4 wherein the second mode of operation employs a second carrier frequency and the first mode of operation employs a first carrier frequency for broadcast downlink communications.
6. The communication system of claim 5 wherein the first carrier frequency and second carrier frequency are the same carrier frequency such that the second mode of operation employs a second time portion on the carrier frequency and the first mode of operation employs a first time portion for broadcast downlink communications.
7. Management logic (146) for a cellular communication system arranged to be operably coupled to a plurality of wireless serving communication units wherein the management logic comprises: broadcast mode logic (150) arranged to support a common cell identifier reuse pattern for broadcast transmissions amongst a cluster of communication cells;
wherein the broadcast mode logic (150) allocates the same common cell identifier (215) to be used by the plurality of wireless serving communication units to a first timeslot (350) or first sub-frame of the broadcast communication to be used across the cluster of communication cells where the first timeslot (350) or first sub-frame is allocated based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.', 'wherein the broadcast mode logic (150) allocates the same common cell identifier (215) to be used by the plurality of wireless serving communication units to a first timeslot (350) or first sub-frame of the broadcast communication to be used across the cluster of communication cells where the first timeslot (350) or first sub-frame is allocated based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.
8. A wireless communication unit comprising: a receiver for receiving a broadcast signal from both a first serving wireless communication unit and a second serving wireless communication unit in a first timeslot (350) or first sub-frame wherein both the first serving wireless communication unit and second serving wireless communication unit use a common cell identifier reuse pattern for broadcast transmissions; and
logic arranged to detect the broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in the first timeslot (350) or first sub-frame, where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.', 'logic arranged to detect the broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in the first timeslot (350) or first sub-frame, where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.
9. The wireless communication unit of claim 8 wherein the logic comprises first detection logic arranged to detect the broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in a first mode of operation and the wireless communication unit further comprises second detection logic arranged to detect unicast communication using a second communication cell identifier in a second mode of operation, such that the first detection logic is adapted to tolerate a higher multipath delay of received signals in the first mode of operation than the second detection logic arranged to communicate in the second mode of operation
10. The wireless communication unit of claim 9 wherein the receiver is arranged to receive signalling information that indicates a timing of the unicast communication transmissions and a timing of the broadcast communication
11. The wireless communication unit of claim 9 wherein the logic arranged to support a first unicast communication using a first communication cell identifier and the logic arranged to support simultaneously a second broadcast communication using a common cell identifier reuse pattern are dynamically re-configured to support an increase or decrease of the second broadcast communication dependent upon at least one prevailing communication condition.12. The wireless communication unit of claim 11 wherein the at least one prevailing communication condition comprises at least one from a group consisting of: a time of day, a number of active users, active user profiles, services being supported.13. The wireless communication unit of claim 9 wherein the second broadcast communication and the first unicast transmissions are allocated different timeslots (350) or different sub-frames.14. A method of receiving broadcast communication in a cellular communication system, the method comprising, at a wireless communication unit: receiving a broadcast signal from both a first serving wireless communication unit and a second serving wireless communication unit in a first timeslot (350) or first sub-frame wherein both the first serving wireless communication unit and second serving wireless communication unit use a common cell identifier reuse pattern for broadcast transmissions; and
detecting a broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in the first timeslot (350) or first sub-frame, where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.', 'detecting a broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in the first timeslot (350) or first sub-frame, where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.15. A non-transitory computer program product having executable program code stored therein for receiving broadcast communications in a cellular communication system, the program code operable for, when executed at a wireless communication unit: receiving a broadcast signal from both a first serving wireless communication unit and a second serving wireless communication unit in a first timeslot (350) or first sub-frame wherein both the first serving wireless communication unit and second serving wireless communication unit use a common cell identifier reuse pattern for broadcast transmissions; and
detecting a broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in the first timeslot (350) or first sub-frame, where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.', 'detecting a broadcast communication from both the first serving wireless communication unit and second serving wireless communication unit in the first timeslot (350) or first sub-frame, where the broadcast communication is allocated to the first timeslot (350) or first sub-frame based on it being more robust to multipath delay due to temporal dispersion of the same broadcast signal from a plurality of wireless serving communication units.']
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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.
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