Efficient control signaling method and system
AssigneeZte Corporation
InventorsWei Cao, Li Tian, Jun Xu
Life of this patent
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Abstract
Reducing control signaling is an effective technique for increasing resource efficiency when supporting a massive number of connections in an Internet of Things framework. In the presence of sporadic and small data packets, the use of control signaling must be optimized to not overwhelm network resources. In some embodiments, a bit map in a control signaling packet may indicate if certain information elements that correspond to configuration parameters are present or absent. When they are absent, predetermined values for the corresponding configuration parameters may be used, whereas when they are present, predefined values from a set of predefined values may be used. In other embodiments, the predetermined values may be periodically updated.
Claims20
A wireless communication method carried out on a wireless communication apparatus, comprising:
- receiving a control signaling packet;
- determining, based on a bit map in the control signaling packet, whether one or more information elements are present in the control signaling packet,
- wherein each of the one or more information elements corresponds to a configuration parameter of a set of configuration parameters, and
- wherein the set of configuration parameters includes at least one of a modulation and coding scheme, a transmission block size, a redundancy version, and a hybrid automatic repeat request (HARQ) process identification (PID);
- upon determining an information element of the one or more information elements is absent in the control signaling packet, using a predetermined value for the configuration parameter corresponding to the absent information element, wherein the predetermined value is determined by a communication node;
- and
- upon determining an information element of the one or more information elements is present in the control signaling packet, using a predefined value from a set of predefined values for the configuration parameter corresponding to the present information element.
A wireless communication method carried out on a communication node, comprising:
- determining whether each predetermined value for each configuration parameter of a set of configuration parameters supports a current transmission mode, wherein the set of configuration parameters includes at least one of a modulation and coding scheme, a transmission block size, a redundancy version, and a hybrid automatic repeat request (HARQ) process identification (PID);
- upon determining the current transmission mode is not supported:
- including at least one information element in a control signaling packet, and
- modifying a bit map in the control signaling packet;
- and
- transmitting the control signaling packet.
An apparatus for wireless communications, comprising:
- a processor configured to:
- receive a control signaling packet;
- determine, based on a bit map in the control signaling packet, whether one or more information elements are present in the control signaling packet,
- wherein each of the one or more information elements corresponds to a configuration parameter of a set of configuration parameters, and
- wherein the set of configuration parameters includes at least one of a modulation and coding scheme, a transmission block size, a redundancy version, and a hybrid automatic repeat request (HARQ) process identification (PID);
- upon determining an information element of the one or more information elements is absent in the control signaling packet, use a predetermined value for the configuration parameter corresponding to the absent information element, wherein the predetermined value is determined by a communication node;
- and
- upon determining an information element of the one or more information elements is present in the control signaling packet, use a predefined value from a set of predefined values for the configuration parameter corresponding to the present information element.
Dependencies are inferred from the claim text.