Section: 6.1.3.15 Hibernation MAC Control Elements
Content: The Hibernation MAC control element of one octet is identified by a MAC PDU subheader with LCID as specified in table 6.2.1-1. It has a fixed size and consists of a single octet containing seven C-fields and one R-field. The Hibernation MAC control element with one octet is defined as follows (figure 6.1.3.15-1). The Hibernation MAC control element of four octets is identified by a MAC PDU subheader with LCID as specified in table 6.2.1-1. It has a fixed size and consists of a four octets containing 31 C-fields and one R-field. The Hibernation MAC control element of four octets is defined as follows (figure 6.1.3.15-2). For the case with no serving cell with a ServCellIndex (TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ]  [8]) larger than 7, Hibernation MAC control element of one octet is applied, otherwise Hibernation MAC control element of four octets is applied. For the case that Hibernation MAC control element is received and Activation/Deactivation MAC control element is not received: - Ci: if there is an SCell configured with SCellIndex i as specified in TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ]  [8], this field indicates the dormant/activated status of the SCell with SCellIndex i, else the MAC entity shall ignore the Ci field. The Ci field is set to "1" to indicate that the SCell with SCellIndex i shall enter dormant state. When the Ci field is set to "0", the SCell with SCellIndex i shall be activated if it is in already activated state or dormant state, otherwise the Ci field set to "0" shall be ignored. - R: Reserved bit, set to "0". For the case that both Activation/Deactivation MAC control element and Hibernation MAC control element are received: - R: Reserved bit, set to "0". - Ci: if there is an SCell configured with SCellIndex i as specified in TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ]  [8], these fields indicate possible state transitions of the SCell with SCellIndex i, else the MAC entity shall ignore the Ci fields. The Ci fields of the two MAC control elements are interpreted according to Table 6.1.3.15-1. Figure 6.1.3.15-1: Hibernation MAC control element of one octet Figure 6.1.3.15-2: Hibernation MAC control element of four octets Table 6.1.3.15-1: MAC control elements for SCell state transitions