Enhanced node B, user equipment and methods for discontinuous reception in inter-eNB carrier aggregation
First Claim
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1. An apparatus of user equipment (UE) configurable for connectivity with multiple cell groups entities, the apparatus comprising:
- memory; and
processing circuitry, configured to;
decode radio-resource control (RRC) signaling from a first cell group associated with a first enhanced node B (eNB), the RRC signaling to configure the UE with a second cell group, the second cell group associated with a secondary eNB, the UE configured to utilize scheduled radio resources of both the first and second cell groups;
decode a first medium-access control (MAC) configuration element received for the first cell group and a second MAC configuration element for the second cell group, the MAC configuration elements to configure the UE for independent discontinuous reception (DRX) operations and independent buffer status reporting operations for each cell group, wherein the first MAC configuration element includes DRX configuration information and buffer status report (BSR) configuration information for the first cell group, and wherein the second MAC configuration element includes DRX configuration information and BSR configuration information for the second cell group;
perform buffer status reporting and DRX operations for the second cell group independently of buffer status reporting and DRX operations for the first cell group, wherein an independent retxBSR-Timer and periodicBSR-Timer are maintained for each of cell group;
configure first uplink data for transmission to the first eNB in accordance with scheduling information received for the first cell group; and
configure second uplink data for transmission to the second eNB in accordance with scheduling information received for the second cell group.
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Abstract
Embodiments of user equipment (UE) and methods for enhanced discontinuous reception (DRX) operations for inter eNB carrier aggregation (CA) in an LTE network are generally described herein. In some embodiments, a UE is configured to be served by multiple serving cells. The first set of the serving cells may be associated with a first eNB and a second set of serving cells may be associated with a second eNB. In these embodiments, DRX operations may be performed independently in multiple serving cells belonging to the different eNBs. Other embodiments for enhanced DRX operations are also described.
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Citations
17 Claims
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1. An apparatus of user equipment (UE) configurable for connectivity with multiple cell groups entities, the apparatus comprising:
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memory; and processing circuitry, configured to; decode radio-resource control (RRC) signaling from a first cell group associated with a first enhanced node B (eNB), the RRC signaling to configure the UE with a second cell group, the second cell group associated with a secondary eNB, the UE configured to utilize scheduled radio resources of both the first and second cell groups; decode a first medium-access control (MAC) configuration element received for the first cell group and a second MAC configuration element for the second cell group, the MAC configuration elements to configure the UE for independent discontinuous reception (DRX) operations and independent buffer status reporting operations for each cell group, wherein the first MAC configuration element includes DRX configuration information and buffer status report (BSR) configuration information for the first cell group, and wherein the second MAC configuration element includes DRX configuration information and BSR configuration information for the second cell group; perform buffer status reporting and DRX operations for the second cell group independently of buffer status reporting and DRX operations for the first cell group, wherein an independent retxBSR-Timer and periodicBSR-Timer are maintained for each of cell group; configure first uplink data for transmission to the first eNB in accordance with scheduling information received for the first cell group; and configure second uplink data for transmission to the second eNB in accordance with scheduling information received for the second cell group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of a user equipment (UE) to configure the UE to perform operations to:
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decode radio-resource control (RRC) signaling from a first cell group associated with a first enhanced node B (eNB), the RRC signaling to configure the UE with a second cell group, the second cell group associated with a secondary eNB, the UE configured to utilize scheduled radio resources of both the first and second cell groups; decode a first MAC configuration element received for the first cell group and a second MAC configuration element for the second cell group, the MAC configuration elements to configure the UE for independent discontinuous reception (DRX) operations and independent buffer status reporting operations for each cell group, wherein the first MAC configuration element includes DRX configuration information for the first MAC entity, and wherein the second MAC configuration element includes DRX configuration information for the second cell group; perform buffer status reporting and DRX operations for the second cell group independently of buffer status reporting and DRX operations for the first cell group, wherein an independent retxBSR-Timer and periodicBSR-Timer are maintained for each of cell group; configure first uplink data for transmission to the first eNB in accordance with scheduling information received for the first cell group; and configure second uplink data for transmission to the second eNB in accordance with scheduling information received for the second cell group. - View Dependent Claims (12, 13, 14)
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15. An apparatus of user equipment (UE) configurable for connectivity with two cell groups, the apparatus comprising:
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memory; and processing circuitry, configured to; decode a first medium-access control (MAC) configuration element received for the first cell group and a second MAC configuration element for the second cell group, the MAC configuration elements to configure the UE for independent buffer status reporting operations for each cell group, wherein the first MAC configuration element includes buffer status report (BSR) configuration information for the first cell group, and wherein the second MAC configuration element includes BSR configuration information for the second cell group; maintain an independent retxBSR-Timer and periodicBSR-Timer for each of cell group; perform buffer status reporting operations for the second cell group independently of buffer status reporting operations for the first cell group; configure BSRs for transmission to the first eNB in accordance with scheduling information received for the first cell group; and configure BSRs for transmission to the second eNB in accordance with scheduling information received for the second cell group. - View Dependent Claims (16, 17)
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Specification