Semi-persistent scheduling in a wireless device and network

1. A method comprising:

receiving, by a wireless device, at least one message comprising:

an uplink semi persistent scheduling (SPS) radio network temporary identifier (RNTI); and

a sequence of at least one uplink SPS information element (IE), wherein an uplink SPS IE of the sequence comprises:

at least one uplink SPS configuration parameter comprising an uplink SPS interval; and

an SPS configuration index for the at least one uplink SPS configuration parameter;

transmitting, by the wireless device, an assistance message comprising SPS assistance information indicating at least one message size and at least one logical channel, associated with a logical channel priority, for uplink SPS traffic;

receiving, based on the SPS assistance information, a downlink control information (DCI) corresponding to the uplink SPS RNTI, the DCI comprising a first SPS configuration index of one of the at least one uplink SPS IE; and

transmitting, at least one transport block, employing at least one first uplink SPS configuration parameter corresponding to the first SPS configuration index.

2. The method of claim 1 , wherein:

the DCI further comprises at least one resource parameter;

the transmitting, the at least one transport block, further employs the at least one resource parameter; and

wherein the transport block is transmitted in a subframe determined employing a first uplink SPS interval of the at least one first uplink SPS configuration parameter.

3. The method of claim 1 , wherein the at least one uplink SPS configuration parameter comprises at least one parameter indicating one or more traffic types corresponding to the at least one uplink SPS IE.

4. The method of claim 1 , wherein the at least one uplink SPS configuration parameter comprises at least one logical channel identifier corresponding to the uplink SPS IE.

5. The method of claim 1 , wherein the DCI further comprises at least one of:

a carrier indicator field;

a frequency hopping flag;

a first field indicating resource block assignment and hopping resource allocation;

a second field indicating modulation and coding scheme and redundancy version;

at least one field indicating one or more traffic types;

a new data indicator field; or

a transmit power control (TPC) field.

6. The method of claim 1 , wherein the at least one message further comprises:

a sidelink SPS RNTI;

a sequence of at least one sidelink SPS IE, wherein a sidelink SPS IE comprises:

a sidelink SPS configuration index indicating an index of at least one sidelink SPS configuration parameter; and

the at least one sidelink SPS configuration parameter.

7. The method of claim 1 , wherein the at least one message comprises:

a second SPS RNTI; and

at least one second SPS configuration parameter corresponding to the second SPS RNTI.

8. The method of claim 1 , where the assistance information further indicates at least one traffic periodicity.

9. The method of claim 1 , wherein the at least one SPS configuration parameter comprises at least one of:

a number of configured hybrid automatic repeat request (HARQ) processes; or

at least one transmit power parameter.

10. A method comprising:

receiving, by a wireless device, at least one message comprising:

a sidelink semi persistent scheduling (SPS) radio network temporary identifier (RNTI); and

a sequence of at least one sidelink SPS information element (IE), wherein a sidelink SPS IE comprises:

at least one sidelink SPS configuration parameter comprising a sidelink SPS interval; and

an SPS configuration index for the at least one sidelink SPS configuration parameter;

transmitting, by the wireless device, an assistance message comprising SPS assistance information indicating at least one message size and at least one logical channel, associated with a logical channel priority, for uplink SPS traffic;

receiving, based on the SPS assistance information, a downlink control information (DCI) corresponding to the sidelink SPS RNTI, the DCI comprising a first SPS configuration index of one of the at least one sidelink SPS IE; and

transmitting, at least one transport block, employing at least one first sidelink SPS configuration parameter corresponding to the first SPS configuration index.

11. The method of claim 10 , wherein:

the DCI further comprises at least one resource parameter; and

the transmitting, the at least one transport block, further employs the at least one resource parameter; and

wherein the transport block is transmitted in a subframe determined employing a first sidelink SPS interval of the at least one first sidelink SPS configuration parameter.

12. The method of claim 10 , wherein the at least one sidelink SPS configuration parameter comprises at least one parameter indicating one or more traffic types corresponding to the at least one sidelink SPS IE.

13. The method of claim 10 , wherein the at least one sidelink SPS configuration parameter comprises at least one logical channel identifier corresponding to the at least one sidelink SPS IE.

14. The method of claim 10 , wherein the DCI further comprises at least one of:

a carrier indicator field;

a frequency hopping flag;

a first field indicating resource block assignment and hopping resource allocation;

a second field indicating modulation and coding scheme and redundancy version;

at least one field indicating one or more traffic types;

a new data indicator field; or

a transmit power control (TPC) field.

15. The method of claim 10 , wherein the at least one message comprises:

an uplink SPS RNTI;

a sequence of at least one uplink SPS IE, wherein an uplink SPS IE comprises:

an uplink SPS configuration index indicating an index of at least one uplink SPS configuration parameter; and

the at least one uplink SPS configuration parameter.

16. The method of claim 10 , wherein the at least one message comprises:

a second sidelink SPS RNTI; and

at least one second sidelink SPS configuration parameter corresponding to the second sidelink SPS RNTI.

17. The method of claim 10 , wherein the sidelink SPS RNTI is employed for vehicle-to-everything (V2X) communications.

18. The method of claim 10 , wherein the at least one sidelink SPS configuration parameter comprises at least one of:

a number of configured hybrid automatic repeat request (HARQ) processes; or

at least one transmit power parameter.

19. A method comprising:

transmitting, by a base station, at least one message comprising:

an uplink periodic resource allocation radio network temporary identifier (RNTI); and

a sequence of at least one uplink periodic resource allocation information element (IE), wherein an uplink periodic resource allocation IE comprises:

at least one uplink periodic resource allocation configuration parameter; and

a periodic resource allocation configuration index for the at least one uplink periodic resource allocation configuration parameter;

receiving, by the base station, an assistance information message comprising SPS assistance information indicating at least one message size and at least one logical channel, associated with a logical channel priority, for uplink SPS traffic;

transmitting, based on the SPS assistance information, a downlink control information (DCI) corresponding to the uplink periodic resource allocation RNTI, the DCI comprising a first periodic resource allocation configuration index of one of the at least one uplink periodic resource allocation IE; and

receiving, at least one transport block, employing at least one first uplink periodic resource allocation configuration parameter corresponding to the first periodic resource allocation configuration index.

20. The method of claim 19 , further comprising transmitting a second DCI corresponding to the uplink periodic resource allocation RNTI, wherein:

the second DCI is configured to cause release of the at least one uplink periodic resource allocation configuration; and

the second DCI comprises the first periodic resource allocation configuration index.