METHODS AND APPARATUSES FOR USER EQUIPMENT ACCESS TO A WIRELESS COMMUNICATION SYSTEM

• US 20180098360A1
• Filed: 09/29/2017
• Published: 04/05/2018
• Est. Priority Date: 09/30/2016
• Status: Active Grant

• Current Assignee: Semtech Corporation
• Original Assignee: Sierra Wireless Incorporated
• Inventors: Vos, Gustav Gerald, Bennett, Steven John, Cirik, Ali Cagatay, Mysore Balasubramanya, Naveen, Lampe, Lutz Hans-Joachim
• Granted Patent: US 11,202,324 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 52/0254 detecting a user operation or a tactile contact or a motion of the device
• CPC Class Codes: H04W 56/0045 compensating for timing error by altering transmission time
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/0858 collision detection
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/30 Connection release
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present disclosure provides a grant free state for user equipment, for example a machine type communication (MTC) UE. There is provided a method for transitioning a state of a User Equipment (UE). The method includes determining, by the UE, if data is to be sent and transitioning, by the UE, to a grant free state when no data is to be sent, wherein transitioning to the grant free state includes receiving a grant free identifier (GF-ID). In some embodiments, the method further includes in accordance with a determination that an amount of data to be sent is below a threshold, transmitting, by the UE, the data together with the GF-ID. In addition, user equipment and base transceiver stations are provided each of which include a processor and memory having instructions stored thereon, which when executed by the processor configure the respective UE or BTS to perform the respective methods.

Claims

1. A method for transitioning a state of a User Equipment (UE), the method comprising:

determining, by the UE, if data is to be sent; and

transitioning, by the UE, to a grant free state when no data is to be sent, wherein transitioning to the grant free state includes receiving a grant free identifier (GF-ID).

2. The method according to claim 1, further comprising:

in accordance with a determination that an amount of data to be sent is below a threshold, transmitting, by the UE, the data together with the GF-ID.

3. The method according to claim 2, further comprising:

receiving, by the UE, an acknowledgement or negative acknowledgement together with one or more of a timing advance and a set of modulation and coding schemes.

4. The method according to claim 1, further comprising:

transmitting, by the UE, a release request prior to transitioning to the grant free state.

5. The method according to claim 1, further comprising:

detecting, by the UE, a new base transceiver station (BTS); and

initiating, by the UE, a base transceiver station update procedure with the new BTS.

6. The method according to claim 5, further comprising:

receiving, by the UE, a timing advance and an uplink grant.

7. The method according to claim 1, further comprising:

transitioning, by the UE, to an Idle mode; and

initiating, by the UE, a base transceiver station update procedure.

8. The method according to claim 7, further comprising:

receiving, by the UE, a timing advance and an uplink grant.

9. The method according to claim 1, further comprising:

receiving, by the UE, a timing advance.

10. The method according to claim 1, further comprising:

receiving, by the UE, plural GF send procedure fail notifications; and

transitioning, by the UE, to a connected state.

11. The method according to claim 1, further comprising:

detecting, by the UE, movement of the UE; and

initiating, by the UE, a base transceiver station update procedure.

12. A user equipment (UE) comprising:

a processor; and

a memory having stored thereon instructions, which when executed by the processor configure the UE to;

determine if data is to be sent; and

transition to a grant free state when no data is to be sent, wherein transitioning to the grant free state includes receiving a grant free identifier (GF-ID).

13. The UE according to claim 12, wherein the instructions, which when executed by the processor further configure the UE to:

in accordance with a determination that an amount of data to be sent is below a threshold, transmit the data together with the GF-ID.

14. The UE according to claim 13, wherein the instructions, which when executed by the processor further configure the UE to:

receive an acknowledgement or negative acknowledgement together with one or more of a timing advance and a set of modulation and coding schemes.

15. The UE according to claim 12, wherein the instructions, which when executed by the processor further configure the UE to:

transmit a release request prior to transitioning to the grant free state.

16. The UE according to claim 12, wherein the instructions, which when executed by the processor further configure the UE to:

detect a new base transceiver station (BTS); and

initiate a base transceiver station update procedure with the new BTS.

17. The UE according to claim 16, wherein the instructions, which when executed by the processor further configure the UE to:

receive a timing advance and an uplink grant.

18. The UE according to claim 12, wherein the instructions, which when executed by the processor further configure the UE to:

transition to an Idle mode; and

initiate a base transceiver station update procedure.

19. The UE according to claim 18, wherein the instructions, which when executed by the processor further configure the UE to:

receive a timing advance and an uplink grant.

20. The UE according to claim 12, wherein the instructions, which when executed by the processor further configure the UE to:

receive a timing advance.

21. The UE according to claim 12, wherein the instructions, which when executed by the processor further configure the UE to:

detect movement of the UE; and

initiate a base transceiver station update procedure.

22. A method for receiving data from a User Equipment (UE), the method comprising:

transmitting, by a base transceiver station (BTS), a grant free identifier (GF-ID) to the UE; and

receiving, by the BTS, data together with the GF-ID.

23. The method according to claim 22, further comprising transmitting, by the BTS, a and acknowledgement or negative acknowledgement together with one or more of a timing advance and a set of modulation and coding schemes.

24. The method according to claim 22, further comprising receiving, by the BTS, release request prior to transmitting the GF-ID.

26. The BTS according to claim 23, wherein the instructions, which when executed by the processor further configure the BTS to transmit an acknowledgement or negative acknowledgement together with one or more of a timing advance and a set of modulation and coding schemes.

25. A base transceiver station (BTS) comprising:

a processor; and

a memory having stored thereon instructions, which when executed by the processor configure the BTS to;

transmit a grant free identifier (GF-ID); and

receive data together with the GF-ID.

27. A method for transmitting data by a User Equipment (UE), the method comprising:

determining, by the UE, if an amount of data to be sent exceeds a threshold; and

transmitting, by the UE, data to a base transceiver station (BTS), together with a grant free identifier (GF-ID) when the amount of data is below the threshold.

28. A system enabling data transmission by a User Equipment (UE), the system comprising:

a UE having a UE operational state controller configured to manage operational states of the UE, the operational states including a grant free state; and

a BTS having a BTS operation state controller configured to manage operational states of the UE by interaction with the UE operational state controller.