ns3::NrChAccessManager class

Requesting the channel

The PHY would call the method RequestAccess(). Then, when the channel is available for transmission, the channel access manager would call the callback set with the method SetAccessGrantedCallback(). If the channel cannot be access, then the callback set with SetAccessDeniedCallback() will be called, instead. The request can be cancelled by calling Cancel().

Configuration

Any channel access manager attribute can be set through the helper methods NrHelper::SetUeChannelAccessManagerAttribute() or NrHelper::SetGnbChannelAccessManagerAttribute(). Another option is directly calling SetAttribute on the pointer. The list of attributes is reported below, in the Attributes section.

Introspection did not find any typical Config paths.

Attributes

• GrantDuration: Duration of grant for transmitting.
  • Set with class: ns3::TimeValue
  • Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
  • Initial value: +60000000000.0ns
  • Flags: construct write read

No TraceSources are defined for this type.
Size of this type is 56 bytes (on a 64-bit architecture).

Derived classes

class NrAlwaysOnAccessManager

A Channel access manager that sees the channel always free for transmitting.

Public types

using AccessDeniedCallback = std::function<void()>

A function that signal that the channel is denied and the request should be retried.

using AccessGrantedCallback = std::function<void(const Time&time)>

A function that signal that the channel has been earned.

Public static functions

static auto GetTypeId() -> TypeId

Get the type ID.

Constructors, destructors, conversion operators

NrChAccessManager()

ChannelAccessManager constructor.

~NrChAccessManager() override

~ChannelAccessManager

Public functions

void Cancel() pure virtual

Cancel a previously invoked request for accesing the channel.

auto GetGrantDuration() const -> Time

Get grant duration time.

auto GetNrGnbMac() -> Ptr<NrGnbMac>

Getter for MAC instance to which is connected this channel access manager.

auto GetNrSpectrumPhy() -> Ptr<NrSpectrumPhy>

Getter for spectrum phy instance to which is connected this channel access manager.

void RequestAccess() pure virtual

RequestAccess.

void SetAccessDeniedCallback(const AccessDeniedCallback& cb) pure virtual

Set Access-Denied Callback.

void SetAccessGrantedCallback(const AccessGrantedCallback& cb) pure virtual

Set Access-Granted Callback.

void SetGrantDuration(Time grantDuration)

Set duration of grant for transmission.

void SetNrGnbMac(Ptr<NrGnbMac> mac) virtual

Set MAC instance for this channel access manager.

void SetNrSpectrumPhy(Ptr<NrSpectrumPhy> spectrumPhy) virtual

Set spectrum phy instance for this channel access manager.

Function documentation