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1. (WO2019030084) TECHNIQUE DE GÉNÉRATION ET/OU DE GESTION DE RNTI
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Claims

1. A wireless device (QQ110) configured to determine a Random Access-Radio Network Temporary Identifier, RA-RNTI, for use in a radio network system, the wireless device comprising:

a first counter (410) configured to be incremented after a pre-defined period of time and to be re-set when having reached a predefined first number, wherein the first counter (410) counts a first count;

a second counter (420) configured to be incremented when the first counter (410) reaches the predefined first number and to be re-set when having reached a predefined second number, wherein the second counter (420) counts a second count; and

a third counter (430) configured to be incremented when the second counter (420) reaches the predefined second number and to be re-set when having reached a predefined third number, wherein the third counter (430) counts a third count; and wherein the wireless device (QQ110) is configured to determine an RA-RNTI at least based on the second count and the third count.

2. The wireless device of claim 1, wherein

the RA-RNTI identifies at least a time resource for transmission of a random access message by the wireless device.

3. The wireless device of claim 1 or 2, configured to

determine the RA-RNTI responsive to a decision that a random access is to be performed.

4. The wireless device of any of the preceding claims, configured to

determine a number x of different RA-RNTIs that exceeds a constant a plus the floor of the pre-defined second number y divided by a constant z so that

x > a + floor (y/z).

5. The wireless device of claim 4, wherein

a = 1 or a = 1 plus 256 times a maximum uplink carrier index;

y = 1023;

z = 4.

6. The wireless device of any of the preceding claims, configured to

determine the RN-RNTI based on a mathematical formula that includes both the second count and the third count.

7. The wireless device of claim 6, configured to

determine the RN-RNTI according to

RA-RNTI = a + floor (y/z), wherein

a is an integer including one of: 0; 1; a number > 1; and 1 + an integer multiple of an uplink carrier index ;

y is an integer determined on the basis of both the second count and the third count; and

z is an integer including one of: 1 and a number > 1.

8. The wireless device of claim 7, wherein

y is configured to exceed the predefined second number.

9. The wireless device of any of claims 6 to 8, configured to

determine the RN-RNTI according to

RA-RNTI = 1 + floor ((b + (c + 1) * mod (d,e)) / z) + f, wherein

b is the second count;

c is the second predefined number;

d is the third count;

e is an integer including 1;

z is an integer including 1;

f is an integer including 0, 1 or a number > 1.

10. The wireless device of claim 9, wherein

f = (c + 1) * e / z * carrierjd, wherein

carrierjd is an uplink carrier index.

11. The wireless device of any of claims 1 to 5, configured to

determine the RA-RNTI based on a bit-level operation applied to binary representations of the second count and the third count.

12. The wireless device of claim 11, configured to

determine the RA-RNTI based on a binary number that has been generated by appending one or more bits of a binary representation of the third count to a binary representation of the second count.

13. The wireless device of any of the preceding claims, configured to perform at least one of the following procedures:

generate a random access request message in accordance with the RA-RNTI and send the random access request message towards an access network;

identify a random access response message from the access network associated with the RA-RNTI.

14. The wireless device of any of the preceding claims, configured to

determine the RA-RNTI based on an expression that yields a uniform distribution of RA-RNTI values.

15. The wireless device of at least claim 9, wherein

b is a system frame number;

c = 1023;

d is a hyper frame number;

e = 2 or 4; and

z = 4.

16. The wireless device of any of the preceding claims, configured to

determine the RN-RNTI according to

RA-RNTI = 1 + floor ((b/4) + 1024 * mod (d,2), wherein

b is the second count;

d is the third count.

17. The wireless device of claim 16, wherein

b is a system frame number and d is a hyper frame number.

18. The wireless device of any of the preceding claims, wherein

the wireless device is a Narrowband Internet of Things User Equipment, NB-IoT UE, configured to determine the RA-RNTI for a Time Division Duplex, TDD, mode.

19. An access network node (QQ160) configured to determine a Random Access-Radio Network Temporary Identifier, RA-RNTI, for use in a radio network system, the access network node comprising:

a first counter (610) configured to be incremented after a pre-defined period of time and to be re-set when having reached a predefined first number, wherein the first counter (610) counts a first count;

a second counter (620) configured to be incremented when the first counter (610) reaches the predefined first number and to be re-set when having reached a predefined second number, wherein the second counter (620) counts a second count;

a third counter (630) configured to be incremented when the second counter (620) reaches the predefined second number and to be re-set when having reached a predefined third number, wherein the third counter (630) counts a third count; an interface (640) configured to receive a random access message from a wireless device; and

wherein the access network node (QQ160) is configured to determine an RA-RNTI associated with the random access message based on the second count and the third count at the time when the random access message was received.

20. The access network node of claim 19, configured to

generate a random access response that includes the RA-RNTI and send the random access response to the wireless device.

21. The access network node of claim 19 or 20 , configured to

manage a first RNTI type comprising a number of designated RA-RNTIs available for use in the radio network system and at least one second RNTI type different from the first type;

determine, based on a priori-knowledge, one or more designated RA-RNTIs available but unused in the radio network system; and

allocate the one or more unused designated RA-RNTIs to the second RNTI type.

22. The access network node of claim 21, wherein

the a priori-knowledge relates to communication opportunities on a

transmission channel.

23. The access network node of any of claims 19 to 22, configured to

determine the RN-RNTI according to

RA-RNTI = 1 + floor ((b/4) + 1024 * mod (d,2), wherein

b is the second count;

d is the third count.

24. The access network node of claim 23, wherein

b is a system frame number and d is a hyper frame number.

25. The access network node of any of claims 19 to 24, configured

to determine the RA-RNTI for a Time Division Duplex, TDD, mode.

26. An access network node (QQ160) for managing Radio Network Temporary Identifiers, RNTIs, for use in a radio network system, the RNTIs belonging to a first RNTI type comprising a number of designated Random Access-, RA-, RNTIs and at least one second RNTI type different from the first type, wherein the access network node is configured to

determine, based on a priori-knowledge, one or more designated RA-RNTIs available but unused in the radio network system; and

allocate the one or more unused designated RA-RNTIs to the second RNTI type.

27. A radio network system including one or more of the wireless devices of any of claims 1 to 18 and/or the access network node of any of claims 19 to 26.

28. The radio network system of claim 27, wherein

the system is configured to operate in a Time Division Duplex, TDD, mode.

29. A method of determining a Random Access-Radio Network Temporary

Identifier, RA-RNTI, for use in a radio network system, the method being performed by a wireless device (QQ110) and comprising:

operating (510) a first counter configured to be incremented after a predefined period of time and to be re-set when having reached a predefined first number, wherein the first counter counts a first count;

operating (510) a second counter configured to be incremented when the first counter reaches the predefined first number and to be re-set when having reached a predefined second number, wherein the second counter counts a second count; and operating a third counter (510) configured to be incremented when the second counter reaches the predefined second number and to be re-set when having reached a predefined third number, wherein the third counter counts a third count; and

determining (530) an RA-RNTI at least based on the second count and the third count.

30. A method of determining a Random Access-Radio Network Temporary

Identifier, RA-RNTI, for use in a radio network system, the method being performed by an access network node (QQ160) and comprising:

operating (710) a first counter configured to be incremented after a predefined period of time and to be re-set when having reached a predefined first number, wherein the first counter counts a first count;

operating (710) a second counter configured to be incremented when the first counter reaches the predefined first number and to be re-set when having reached a predefined second number, wherein the second counter counts a second count; operating (710) a third counter configured to be incremented when the second counter reaches the predefined second number and to be re-set when having reached a predefined third number, wherein the third counter counts a third count; receiving (720) a random access message from a wireless device; and determining (730) an RA-RNTI associated with the random access message based on the second count and the third count at the time when the random access message was received.

31. A method of managing Radio Network Temporary Identifiers, RNTIs, for use in a radio network system, the RNTIs belonging a first RNTI type comprising a number of designated Random Access-, RA-, RNTIs and at least one second RNTI type different from the first type, wherein the method comprises:

determining, based on a priori-knowledge, one or more designated RA-RNTIs available but unused in the radio network system; and

allocating the one or more unused designated RA-RNTIs to the second RNTI type.

32. A computer program product comprising software code portions for performing the steps of claim 29, 30 or 31 when executed on a computing device.

33. The computer program product of claim 32, stored on a computer-readable recording medium.