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US RE50,011 E1Granted
Methods and devices for broadcasting system information on demand
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsGen Li, Hai Wang, Jianfeng Wang
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure relate to methods and devices for broadcasting system information on demand. In example embodiments, the system information is classified as essential and optional system information. The essential information is broadcasted periodically, and the optional system information is broadcasted in response to the request by UEs. In this way, the system information can be in an effective and efficient way, thereby saving significant resource and energy can be saved especially in the case of no load or low load.
Claims34
A method implemented by a device at a base station of a cell of a cellular network, comprising:
- broadcasting, to at least one terminal, essential system information, the essential system information comprising a resource configuration of a demand channel for requesting optional system information to be provided to the at least one terminal on a demand-basis and information identifying a predefined resource zone for receiving the optional system information in response to a request for the optional system information, wherein the essential system information is required to access a cell of the device, wherein the demand channel is a channel on which user equipments send a request for requesting at least a part of the optional system information on the demand-basis to avoid periodic transmission of the optional system information, wherein the information identifying the predefined resource zone comprises at least one of a time resource or a frequency resource an identifier of one or more physical resource blocks (PRBs) for receiving the optional system information, and wherein the resource configuration of the demand channel includes at least one of the following:
- a period of the demand channel, a time offset with respect to a reference signal, or a frequency offset with respect to the reference signal;
- while monitoring the demand channel, receiving a request from the at least one terminal for at least a part of optional system information other than the essential system information;
- and
- in response to receiving the request from a user equipment, broadcasting an indicator in the predefined resource zone to indicate existence of the part of the optional system information and broadcasting, on the demand basis, the part of the optional system information in the predefined resource zone.
2 more elements
A device at a base station of a cell of a cellular network, comprising:
- a transceiver configured to broadcast, to at least one terminal, essential system information, the essential system information comprising a resource configuration of a demand channel for requesting optional system information to be provided to the at least one terminal on a demand-basis and information identifying a predefined resource zone for receiving the optional system information in response to a request for the optional system information, wherein the essential system information is required to access a cell of the device, wherein the demand channel is a channel on which terminals send a request for requesting at least a part of the optional system information on the demand-basis to avoid periodic transmission of the optional system information, wherein the information identifying the predefined resource zone comprises at least one of a time resource or a frequency resource an identifier of one or more physical resource blocks (PRBs) for receiving the optional system information, wherein the resource configuration of the demand channel includes at least one of the following:
- a period of the demand channel, a time offset with respect to a reference signal, or a frequency offset with respect to the reference signal;
- and
- controller configured to, while monitoring demand channel, receive a request from the at least one terminal for at least a part of optional system information other than the essential system information,
- the transceiver being further configured to:
- broadcast an indicator in the predefined resource zone to indicate existence of the part of the optimal system information;
- and
- in response to receiving the request and on the demand-basis, broadcast the part of the optional system information in the predefined resource zone.
5 more elements
A method implemented by a terminal, comprising:
- receiving essential system information broadcast by a device at a base station of a cell of a cellular network, the essential system information comprising a resource configuration of a demand channel for requesting optional system information to be provided to the terminal on a demand-basis and information identifying a predefined resource zone for receiving the optional system information in response to a request for the optional system information, wherein the essential system information is required to access a cell of the device, wherein the demand channel is a channel for requesting at least a part of the optional system information on the demand-basis, wherein the information identifying the predefined resource zone comprises an identifier of one or more physical resource blocks (PRBs) for receiving the optional system information, wherein the resource configuration of the demand channel includes at least one of the following:
- a period of the demand channel, a time offset with respect to a reference signal, or a frequency offset with respect to the reference signal;
- sending, on the demand channel, a request for at least a part of optional system information other than the essential system information;
- and
- receiving an indicator broadcast in the predefined resource zone, the indicator indicating existence of the part of the optional system information and receiving, on the demand basis, the part of the optional system information broadcast in the predefined resource zone.
2 more elements
A terminal, comprising:
- a receiver configured to receive essential system information broadcast by a device at a base station of a cell of a cellular network, the essential system information comprising a resource configuration of a demand channel for requesting optional system information to be provided to the terminal on a demand-basis and information identifying a predefined resource zone for receiving the optional system information in response to a request for the optional system information, wherein the essential system information is required to access a cell of the device, wherein the demand channel is a channel for requesting at least a part of the optional system information on the demand-basis, wherein the information identifying the predefined resource zone comprises an identifier of one or more physical resource blocks (PRBs) for receiving the optional system information, wherein the resource configuration of the demand channel includes at least one of the following:
- a period of the demand channel, a time offset with respect to a reference signal, or a frequency offset with respect to the reference signal;
- and
- a transmitter configured to send, on the demand channel, a request for at least a part of optional system information other than the essential system information;
- wherein the receiver is further configured to:
- receive an indicator broadcast in the predefined resource zone, the indicator indicating existence of the part of the optimal system information;
- and
- receive, on the demand-basis, the part of the optional system information broadcast in the predefined resource zone.
5 more elements
Dependencies are inferred from the claim text.