Multi-cell SIB provision with encoding
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJohan Rune, Pål Frenger
Life of this patent
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Abstract
A network node provisions multi-cell System Information (SI) for a serving cell serving a wireless device and some number of second cells by dividing the multi-cell System Information Block (SIB) into multiple SIB instances. At least one of the SIB instances comprises the SIB content for the serving cell, and each remaining SIB instance comprises the SIB content for the cell(s) associated with that SIB instance, where the SIB content for at least one of the SIB instances is compressed. In one embodiment, another of the SIB instances comprises SIB content for one or more of the second cells, which is subsequently compressed before being provided to the wireless device. Each SIB instance is then provided to a wireless device via a corresponding downlink communication channel.
Claims16
A method, implemented by a network node of a serving cell, of provisioning System Information (SI) for the serving cell and one or more second cells within an SI area of the serving cell, the network node configured to transmit downlink signals to a wireless device and to receive uplink signals from the wireless device, the method comprising:
- dividing multi-cell content of a System Information Block (SIB) into a first SIB instance comprising SIB content for the serving cell and a second SIB instance comprising SIB content for one or more of the second cells;
- compressing the SIB content for the second SIB instance to generate a compressed second SIB instance;
- providing the first SIB instance to the wireless device via a first downlink communication channel;
- and
- providing the compressed second SIB instance to the wireless device via a second downlink communication channel;
- wherein compressing the SIB content comprised within the second SIB instance comprises generating the compressed second SIB instance by:
- encoding each of any first parameters of the second SIB instance with a first format, said first parameters comprising those parameters in the second SIB instance that are identical to a corresponding parameter in the first SIB instance;
- and
- encoding each of any second parameters of the second SIB instance with a second format different from the first format, said second parameters comprising those parameters in the second SIB instance that are different than the corresponding parameter in the first SIB instance.
A non-transitory computer readable medium storing a computer program product for controlling a network node of a serving cell to provision System Information (SI) for the serving cell and one or more second cells within an SI area of the serving cell, the network node configured to transmit downlink signals to a wireless device and to receive uplink signals from the wireless device, the computer program product comprising software instructions which, when run on at least one processing circuit in the network node, causes the network node to:
- divide multi-cell content of a System Information Block (SIB) into a first SIB instance comprising SIB content for the serving cell and a second SIB instance comprising SIB content for one or more of the second cells;
- compress the SIB content for the second SIB instance to generate a compressed second SIB instance;
- provide the first SIB instance to the wireless device via a first downlink communication channel;
- and
- provide the compressed second SIB instance to the wireless device via a second downlink communication channel;
- wherein the software instructions, when run on the at least one processing circuit in the network node, causes the network node to compress the SIB content comprised within the second SIB instance by generating the compressed second SIB instance by:
- encoding each of any first parameters of the second SIB instance with a first format, said first parameters comprising those parameters in the second SIB instance that are identical to a corresponding parameter in the first SIB instance;
- and
- encoding each of any second parameters of the second SIB instance with a second format different from the first format, said second parameters comprising those parameters in the second SIB instance that are different than the corresponding parameter in the first SIB instance.
A network node of a serving cell for transmitting downlink signals to a wireless device and receiving uplink signals from the wireless device, the network node configured to provision System Information (SI) for the serving cell and one or more second cells within an SI area of the serving cell, the network node comprising:
- a System Information Block (SIB) circuit configured to divide multi-cell content of a SIB into a first SIB instance comprising SIB content for the serving cell and a second SIB instance comprising SIB content for one or more of the second cells;
- a compression circuit configured to compress the SIB content for the second SIB instance relative to the SIB content in the first SIB instance to generate a compressed second SIB instance;
- and
- a transmitter configured to:
- provide the first SIB instance to the wireless device via a first downlink communication channel;
- and
- provide the compressed second SIB instance to the wireless device via a second downlink communication channel;
- wherein the compression circuit compresses the SIB content comprised within the second SIB instance by generating the compressed second SIB instance by:
- encoding each of any first parameters of the second SIB instance with a first format, said first parameters comprising those parameters in the second SIB instance that are identical to a corresponding parameter in the first SIB instance;
- and
- encoding each of any second parameters of the second SIB instance with a second format different from the first format, said second parameters comprising those parameters in the second SIB instance that are different than the corresponding parameter in the first SIB instance.
A method, implemented by a wireless device in a serving cell, of determining System Information (SI) for the serving cell and one or more second cells within an SI area of the serving cell, where the wireless device is configured to receive downlink signals from a network node of the serving cell and to transmit uplink signals to the network node of the serving cell, the method comprising:
- receiving a first System Information Block (SIB) instance via a first downlink communication channel, said first SIB instance comprising SIB content for the serving cell;
- receiving a second SIB instance via a second downlink communication channel, said second SIB instance comprising compressed SIB content for one or more of the second cells;
- and
- processing the first SIB instance and the second SIB instance to determine the SI for the serving cell and the one or more of the second cells;
- wherein the compressed SIB content comprised within the second SIB instance comprises:
- first parameters of a second SIB instance encoded with a first format, said first parameters comprising those parameters in the second SIB instance that are identical to a corresponding parameter in the first SIB instance;
- and
- second parameters of the second SIB instance encoded with a second format different from the first format, said second parameters comprising those parameters in the second SIB instance that are different than the corresponding parameter in the first SIB instance.
A non-transitory computer readable medium storing a computer program product for determining, by a wireless device in a serving cell, System Information, SI, for the serving cell and one or more second cells within an SI area of the serving cell, where the wireless device is configured to receive downlink signals from a network node of the serving cell and to transmit uplink signals to the network node of the serving cell, the computer program product comprising software instructions which, when run on at least one processing circuit in the wireless device, causes the wireless device to:
- receive a first System Information Block (SIB) instance via a first downlink communication channel, said first SIB instance comprising SIB content for the serving cell;
- receive a second SIB instance via a second downlink communication channel, said second SIB instance comprising compressed SIB content for one or more of the second cells;
- and
- process the first SIB instance and the second SIB instance to determine the SI for the serving cell and the one or more of the second cells;
- wherein the compressed SIB content comprised within the second SIB instance comprises:
- first parameters of a second SIB instance encoded with a first format, said first parameters comprising those parameters in the second SIB instance that are identical to a corresponding parameter in the first SIB instance;
- and
- second parameters of the second SIB instance encoded with a second format different from the first format, said second parameters comprising those parameters in the second SIB instance that are different than the corresponding parameter in the first SIB instance.
A wireless device in a serving cell configured to determine System Information (SI) for the serving cell and one or more second cells within an SI area of the serving cell, the wireless device is configured to receive downlink signals from a network node of the serving cell and to transmit uplink signals to the network node of the serving cell, the wireless device comprising:
- a receiver circuit configured to:
- receive a first System Information Block (SIB) instance via a first downlink communication channel, said first SIB instance comprising SIB content for the serving cell;
- and
- receive a second SIB instance via a second downlink communication channel, said second SIB instance comprising compressed SIB content for one or more of the second cells;
- and
- a SIB circuit configured to process the first SIB instance and the second SIB instance to determine the SI for the serving cell and the one or more of the second cells;
- wherein the compressed SIB content comprised within the second SIB instance comprises:
- first parameters of a second SIB instance encoded with a first format, said first parameters comprising those parameters in the second SIB instance that are identical to a corresponding parameter in the first SIB instance;
- and
- second parameters of the second SIB instance encoded with a second format different from the first format, said second parameters comprising those parameters in the second SIB instance that are different than the corresponding parameter in the first SIB instance.
Dependencies are inferred from the claim text.