PROCESSING MEASUREMENT GAPS IN A WIRELESS COMMUNICATION SYSTEM

• US 20100034158A1
• Filed: 07/10/2009
• Published: 02/11/2010
• Est. Priority Date: 08/11/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Meylan, Arnaud
• Granted Patent: US 8,873,522 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 36/0094 Definition of hand-off measurement parameters

Abstract

In a wireless communication system, user equipment (UE) is provided, one or more set of rules are provided for the UE to handle the processing during a measurement gap. In some aspects, the gap measurement may be ignored. In some aspects, the processing is stored and handled at a later in time and gap measurements are performed. Depending on the system, the measurements performed during the gaps may be UE implementation dependent, wherein the UE determines whether to perform the measurement for a given gap. In some instances, the UE may not perform measurements during the gap, thereby giving priority to other processing, such as RACH processing. Depending on the type of processing required (DL-SCH, UL-SCH, TTI bundling, RACH or SR), the UE may store requests and process the measurements during the gap or ignore the gap measurement as if there were no gaps.

Claims

1. A method for processing a measurement gap, comprising:

receiving a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency;

determining a scheduling conflict for complying with the measurement gap; and

performing a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

2. The method of claim 1, further comprising:

determining a scheduling conflict arising from downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (Ack/Nak) feedback that occurs during the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel received before the measurement gap and buffering ACK/NAK feedback data, and

precluding ACK/NAK feedback being sent during measurement gap.

3. The method of claim 1, further comprising:

determining a scheduling conflict arising from downlink shared channel (DL-SCH) occurring during the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap, and

omitting sending corresponding uplink ACK/NAK feedback.

4. The method of claim 1, further comprising:

determining a scheduling conflict arising from semi-persistent allocation of downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel received before the measurement gap and buffering ACK/NAK feedback data, and

precluding ACK/NAK feedback being sent during measurement gap.

5. The method of claim 1, further comprising:

determining a scheduling conflict arising from semi-persistent allocated downlink shared channel (DL-SCH) occurring during the measurement gap wherein a semi-persistently scheduled (SPS) first transmission is constructively received; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

receiving SPS user equipment (UE)-generated downlink assignment by MAC, and

omitting reception of DL-SCH with respect to UE-generated downlink assignment.

6. The method of claim 1, further comprising:

determining a scheduling conflict arising from physical downlink control channel (PDCCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling uplink shared channel (UL-SCH) first transmission or retransmission, and

regarding the UL-SCH first transmission or retransmission as not acknowledged (Nak'"'"'ed).

7. The method of claim 1, further comprising:

determining a scheduling conflict arising from physical downlink control channel (PDCCH) occurring during the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data control channel during measurement gap, and

omitting transmitting on physical uplink shared channel (PUSCH) during measurement gap.

8. The method of claim 1, further comprising:

determining a scheduling conflict arising from semi-persistently allocated uplink shared control channel (UL-SCH) occurring during the measurement gap;

and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

canceling the UL-SCH first transmission or retransmission and regarding as not acknowledged (Nak'"'"'ed), and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

9. The method of claim 1, further comprising:

determining a scheduling conflict arising from an end of a transmission time interval (TTI) bundle colliding with the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting a beginning portion of the TTI bundle that does not overlap with the measurement gap and canceling the colliding end, and

using ACK/NAK feedback for last intended TTI of bundle, if received, else if collides with measurement gap considering this bundle acknowledged (ack).

10. The method of claim 1, further comprising:

determining a scheduling conflict arising from a beginning of a transmission time interval (TTI) bundle colliding with the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting an ending portion of the TTI bundle that does not overlap with the measurement gap and canceling the beginning, and

behaving in accordance with ACK/NAK feedback received for last intended TTI of the bundle.

11. The method of claim 1, further comprising:

determining a scheduling conflict arising from a transmission time interval (TTI) bundle colliding with the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling all transmission for the TTI bundle, and

considering not acknowledged (Nak) for the TTI bundle.

12. The method of claim 1, further comprising:

determining a scheduling conflict arising from a desired use of random access channel (RACH) procedure with the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and utilizing the RACH procedure.

13. The method of claim 1, further comprising:

determining a scheduling conflict arising from ongoing use of random access channel (RACH) procedure with the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by not using the measurement gap until the RACH procedure completes (commitment to RACH).

14. The method of claim 1, further comprising:

determining a scheduling conflict arising from a desired use of service request (SR) during the measurement gap; and

performing the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and transmitting a service request. If scheduling request is used, MAC cannot does not use measurement gap for as long as SR is pending.

15. At least one processor for processing a measurement gap, comprising:

a first module for receiving a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency;

a second module for determining a scheduling conflict for complying with the measurement gap; and

a third module for performing a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

16. A computer program product for processing a measurement gap, comprising:

a computer-readable storage medium comprising,

a first set of codes for causing a computer to receive a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency;

a second set of codes for causing the computer to determine a scheduling conflict for complying with the measurement gap; and

a third set of codes for causing the computer to perform a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

17. An apparatus for processing a measurement gap, comprising:

means for receiving a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency;

means for determining a scheduling conflict for complying with the measurement gap; and

means for performing a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

18. An apparatus for processing a measurement gap, comprising:

a receiver for receiving a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency;

a transmitter; and

a computing platform for determining a scheduling conflict for complying with the measurement gap,

wherein the computing platform are further for performing a medium access control (MAC) process via the transmitter and receiver in accordance with a protocol predefined for the scheduling conflict.

19. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel received before the measurement gap and buffering ACK/NAK feedback data,

precluding ACK/NAK feedback being sent during measurement gap, and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

20. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from downlink shared channel (DL-SCH) occurring during the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap, and

omitting sending corresponding uplink ACK/NAK feedback.

21. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from semi-persistent allocation of downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel received before the measurement gap and buffering ACK/NAK feedback data,

precluding ACK/NAK feedback being sent during measurement gap, and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

22. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from semi-persistent allocated downlink shared channel (DL-SCH) occurring during the measurement gap wherein a semi-persistently scheduled (SPS) first transmission is constructively received;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

receiving SPS user equipment (UE)-generated downlink assignment by MAC,

omitting reception of DL-SCH with respect to UE-generated downlink assignment, and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

23. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from physical downlink control channel (PDCCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling uplink shared channel (UL-SCH) first transmission or retransmission, and

regarding the UL-SCH first transmission or retransmission as not acknowledged (Nak'"'"'ed).

24. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from physical downlink control channel (PDCCH) occurring during the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data control channel during measurement gap, and

omitting transmitting on physical uplink shared channel (PUSCH) during measurement gap.

25. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from semi-persistently allocated uplink shared control channel (UL-SCH) occurring during the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

canceling the UL-SCH first transmission or retransmission and regarding as not acknowledged (Nak'"'"'ed), and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

26. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from an end of a transmission time interval (TTI) bundle colliding with the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting a beginning portion of the TTI bundle that does not overlap with the measurement gap and canceling the colliding end, and

using ACK/NAK feedback for last intended TTI of bundle if received, else if collides with measurement gap considering this bundle acknowledged (ack) by suspending.

27. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from a beginning of a transmission time interval (TTI) bundle colliding with the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting an ending portion of the TTI bundle that does not overlap with the measurement gap and canceling the beginning, and

behaving in accordance with ACK/NAK feedback received for last intended TTI of the bundle.

28. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from a transmission time interval (TTI) bundle colliding with the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling all transmission for the TTI bundle, and

considering not acknowledged (Nak) for the TTI bundle.

29. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from a desired use of random access channel (RACH) procedure with the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and utilizing the RACH procedure.

30. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from ongoing use of random access channel (RACH) procedure with the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by not using the measurement gap until the RACH procedure completes.

31. The apparatus of claim 18,

wherein the computing platform is further for determining a scheduling conflict arising from a desired use of service request (SR) during the measurement gap;

and

wherein the computing platform via the transmitter and receiver are further for performing the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and transmitting a service request.

32. A method for assigning a measurement gap, comprising:

transmitting a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency; and

enabling user equipment to determine a scheduling conflict for complying with the measurement gap and to perform a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

33. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel (DL-SCH) received before measurement gap; and

not transmitting uplink acknowledgement/not acknowledgement (ACK/NAK) during measurement gap.

34. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from downlink shared channel (DL-SCH) occurring during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap, and

omitting sending corresponding uplink ACK/NAK feedback.

35. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from semi-persistent allocation of downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel received before the measurement gap and buffering ACK/NAK feedback data,

precluding ACK/NAK feedback being sent during measurement gap, and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

36. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from semi-persistent allocated downlink shared channel (DL-SCH) occurring during the measurement gap wherein a semi-persistently scheduled (SPS) first transmission is constructively received, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

receiving SPS user equipment (UE)-generated downlink assignment by MAC,

omitting reception of DL-SCH with respect to UE-generated downlink assignment, and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

37. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from physical downlink control channel (PDCCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling uplink shared channel (UL-SCH) first transmission or retransmission, and

regarding the UL-SCH first transmission or retransmission as not acknowledged (Nak'"'"'ed).

38. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from physical downlink control channel (PDCCH) occurring during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data control channel during measurement gap, and

omitting transmitting on physical uplink shared channel (PUSCH) during measurement gap.

39. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from semi-persistently allocated uplink shared control channel (UL-SCH) occurring during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

canceling the UL-SCH first transmission or retransmission and regarding as not acknowledged (Nak'"'"'ed), and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

40. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from an end of a transmission time interval (TTI) bundle colliding with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting a beginning portion of the TTI bundle that does not overlap with the measurement gap and canceling the colliding end, and

using ACK/NAK feedback for last intended TTI of bundle if received, else if collides with measurement gap considering this bundle acknowledged (ack) by suspending.

41. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from a beginning of a transmission time interval (TTI) bundle colliding with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting an ending portion of the TTI bundle that does not overlap with the measurement gap and canceling the beginning, and

behaving in accordance with ACK/NAK feedback received for last intended TTI of the bundle.

42. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from a transmission time interval (TTI) bundle colliding with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling all transmission for the TTI bundle, and

considering not acknowledged (Nak) for the TTI bundle.

43. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from a desired use of random access channel (RACH) procedure with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and utilizing the RACH procedure.

44. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from ongoing use of random access channel (RACH) procedure with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by not using the measurement gap until the RACH procedure completes.

45. The method of claim 32, further comprising:

enabling user equipment to determine a scheduling conflict arising from a desired use of service request (SR) during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and transmitting a service request.

46. At least one processor for assigning a measurement gap, comprising:

a first module for transmitting a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency; and

a second module for enabling user equipment to determine a scheduling conflict for complying with the measurement gap and to perform a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

47. A computer program product for assigning a measurement gap, comprising:

a computer-readable storage medium comprising,

a first set of codes for causing a computer to transmit a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency; and

a second set of codes for causing the computer to enable user equipment to determine a scheduling conflict for complying with the measurement gap and to perform a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

48. An apparatus for assigning a measurement gap, comprising:

means for transmitting a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency; and

means for enabling user equipment to determine a scheduling conflict for complying with the measurement gap and to perform a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

49. An apparatus for assigning a measurement gap, comprising:

a transmitter for transmitting a radio resource control (RRC) assignment on a downlink for a measurement gap for tuning from a source carrier frequency to a target carrier frequency;

a receiver; and

a computing platform enabling user equipment via the transmitter and receiver to determine a scheduling conflict for complying with the measurement gap and to perform a medium access control (MAC) process in accordance with a protocol predefined for the scheduling conflict.

50. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel (DL-SCH) received before measurement gap;

and

not transmitting uplink acknowledgement/not acknowledgement (ACK/NAK) during measurement gap.

51. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from downlink shared channel (DL-SCH) occurring during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap, and

omitting sending corresponding uplink ACK/NAK feedback.

52. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from semi-persistent allocation of downlink shared channel (DL-SCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

processing downlink shared channel received before the measurement gap and buffering ACK/NAK feedback data,

precluding ACK/NAK feedback being sent during measurement gap, and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

53. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from semi-persistent allocated downlink shared channel (DL-SCH) occurring during the measurement gap wherein a semi-persistently scheduled (SPS) first transmission is constructively received, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

receiving SPS user equipment (UE)-generated downlink assignment by MAC,

omitting reception of DL-SCH with respect to UE-generated downlink assignment, and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

54. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from physical downlink control channel (PDCCH) occurring before the measurement gap prompting uplink acknowledgement/not acknowledgement (ACK/NAK) feedback that occurs during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling uplink shared channel (UL-SCH) first transmission or retransmission, and

regarding the UL-SCH first transmission or retransmission as not acknowledged (Nak'"'"'ed).

55. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from physical downlink control channel (PDCCH) occurring during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data control channel during measurement gap, and

omitting transmitting on physical uplink shared channel (PUSCH) during measurement gap.

56. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from semi-persistently allocated uplink shared control channel (UL-SCH) occurring during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

omitting processing of physical data and control channels during measurement gap,

canceling the UL-SCH first transmission or retransmission and regarding as not acknowledged (Nak'"'"'ed), and

preparing for retransmission after the measurement gap in accordance with ACK/NAK feedback.

57. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from an end of a transmission time interval (TTI) bundle colliding with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting a beginning portion of the TTI bundle that does not overlap with the measurement gap and canceling the colliding end, and

using ACK/NAK feedback for last intended TTI of bundle if received, else if collides with measurement gap considering this bundle acknowledged (ack) by suspending.

58. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from a beginning of a transmission time interval (TTI) bundle colliding with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

transmitting an ending portion of the TTI bundle that does not overlap with the measurement gap and canceling the beginning, and

behaving in accordance with ACK/NAK feedback received for last intended TTI of the bundle.

59. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from a transmission time interval (TTI) bundle colliding with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by,

canceling all transmission for the TTI bundle, and

considering not acknowledged (Nak) for the TTI bundle.

60. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from a desired use of random access channel (RACH) procedure with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and utilizing the RACH procedure.

61. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from ongoing use of random access channel (RACH) procedure with the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by not using the measurement gap until the RACH procedure completes.

62. The apparatus of claim 49,

wherein the computing platform via the transmitter and receiver are further for enabling user equipment to determine a scheduling conflict arising from a desired use of service request (SR) during the measurement gap, and to perform the MAC process in accordance with the protocol predefined for the scheduling conflict by selecting one of utilizing the measurement gap and transmitting a service request.