Timing information for access information table transmission
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJohan Rune, Icaro L. J. da Silva, Gunnar Mildh, Jose Luis Pradas
Life of this patent
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Abstract
An access node (111, 112) of a cellular network transmits an identifier (502, 505) enabling selection of access information from an access information table. The access information is applicable by a radio device (10) for accessing the cellular network. Further, the access node transmits (501, 504) timing information indicating a time of a next transmission of the access information table. Depending on the timing information, the radio device (10) may decide whether to switch to another carrier frequency or to wait on a currently used carrier frequency to receive the access information table.
Claims11
A method of controlling access to a cellular network, the method comprising:
- receiving, by a radio device, on a first carrier frequency, first timing information indicating a time of a next transmission of a first access information table on the first carrier frequency, the first access information table comprising first access information to be applied by radio devices for accessing the cellular network, wherein the first timing information is repeatedly transmitted with a period, wherein the first timing information is distributed over a sequence of multiple transmissions, and wherein the first timing information comprises a countdown value indicating a remaining time until the next transmission of the first access information table;
- and
- depending on the received first timing information, selecting, by the radio device, between:
- waiting on the first carrier frequency until the time of the next transmission of the first access information table to receive the first access information table on the first carrier frequency;
- and
- switching to a second carrier frequency.
A radio device, comprising:
- processing circuitry;
- and
- memory containing instructions executable by the processing circuitry whereby the radio device is operative to:
- receive, on a first carrier frequency, first timing information indicating a time of a next transmission of a first access information table on the first carrier frequency, the first access information table comprising first access information to be applied by radio devices for accessing a cellular network, wherein the first timing information is repeatedly transmitted with a period, wherein the first timing information is distributed over a sequence of multiple transmissions, and wherein the first timing information comprises a countdown value indicating a remaining time until the next transmission of the first access information table;
- and
- depending on the received first timing information, select between:
- waiting on the first carrier frequency until the time of the next transmission of the first access information table to receive the first access information table on the first carrier frequency;
- and
- switching to a second carrier frequency.
Dependencies are inferred from the claim text.