Methods assigning resources for dedicated scheduling requests using MAC messages and related wireless terminals and base stations
First Claim
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1. A method of operating a base station of a radio access network (RAN), the method comprising:
- transmitting a Medium Access Control (MAC) message from a node of the RAN to a wireless terminal, wherein the MAC message includes a Control Element (CE) defining a first assignment of resources for dedicated scheduling requests (D-SRs) available for the wireless terminal to transmit dedicated scheduling requests to the node, wherein the CE includes a code frequency domain index field with a code frequency domain index identifying one of a plurality of code frequency domain resources available for the wireless terminal to transmit dedicated scheduling requests and a first time domain index field with a first time domain index identifying one of a first plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests; and
after transmitting the MAC message, transmitting a Radio Resource Control (RRC) message from the node of the RAN to the wireless terminal, wherein the RRC message includes a second time domain index field larger than the first time domain index field with a second time domain index identifying one of a second plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests, and wherein the first plurality of time domain resources is different than the second plurality of time domain resources.
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Abstract
A method of operating a base station of a radio access network may include transmitting a Medium Access Control (MAC) message from the node of the RAN to a wireless terminal UE. The MAC message may include a Control Element CE defining an assignment of resources for dedicated scheduling requests D-SRs available for the wireless terminal (UE) to transmit dedicated scheduling requests to the node.
10 Citations
20 Claims
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1. A method of operating a base station of a radio access network (RAN), the method comprising:
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transmitting a Medium Access Control (MAC) message from a node of the RAN to a wireless terminal, wherein the MAC message includes a Control Element (CE) defining a first assignment of resources for dedicated scheduling requests (D-SRs) available for the wireless terminal to transmit dedicated scheduling requests to the node, wherein the CE includes a code frequency domain index field with a code frequency domain index identifying one of a plurality of code frequency domain resources available for the wireless terminal to transmit dedicated scheduling requests and a first time domain index field with a first time domain index identifying one of a first plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests; and after transmitting the MAC message, transmitting a Radio Resource Control (RRC) message from the node of the RAN to the wireless terminal, wherein the RRC message includes a second time domain index field larger than the first time domain index field with a second time domain index identifying one of a second plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests, and wherein the first plurality of time domain resources is different than the second plurality of time domain resources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of operating a base station of a radio access network (RAN), the method comprising:
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transmitting a first Medium Access Control (MAC) message from a node of the RAN to a wireless terminal, wherein the first MAC message includes a first Control Element (CE) defining an assignment of resources for dedicated scheduling requests (D-SRs) available for the wireless terminal to transmit dedicated scheduling requests to the node, and wherein the first Control Element includes a D-SR message type identifier and an Assign/Revoke field having a first Assign/Revoke value; and responsive to determining to revoke the assignment of resources for dedicated scheduling requests, transmitting a second MAC message to the wireless terminal wherein the second MAC message includes a second Control Element (CE) including the D-SR message type identifier and an Assign/Revoke field having a second Assign/Revoke value different than the first Assign/Revoke value.
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10. A base station of a radio access network (RAN), the base station comprising:
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a transceiver configured to provide radio communications with a plurality of wireless terminals; and a processor coupled to the transceiver, wherein the processor is configured to, transmit a Medium Access Control (MAC) message from a node of the RAN through the transceiver to a wireless terminal, wherein the MAC message includes a Control Element (CE) defining a first assignment of resources for dedicated scheduling requests (D-SRs), available for the wireless terminal to transmit dedicated scheduling requests to the node, wherein the CE includes a code frequency domain index field with a code frequency domain index identifying one of a plurality of code frequency domain resources available for the wireless terminal to transmit dedicated scheduling requests and a first time domain index field with a first time domain index identifying one of a first plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests, and transmit a Radio Resource Control (RRC) message from the node of the RAN to the wireless terminal after transmitting the MAC message, wherein the RRC message includes a second time domain index field larger than the first time domain index field with a second time domain index identifying one of a second plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests, and wherein the first plurality of time domain resources is different than the second plurality of time domain resources.
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11. A method of operating a wireless terminal in a radio access network (RAN), the method comprising:
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receiving a Medium Access Control (MAC) message from a node of the RAN, wherein the MAC message includes a Control Element (CE) defining a first assignment of resources for dedicated scheduling requests (D-SRs) available for the wireless terminal to transmit dedicated scheduling requests to the node, wherein the CE includes a code frequency domain index field with a code frequency domain index identifying one of a plurality of code frequency domain resources available for the wireless terminal to transmit dedicated scheduling requests and a first time domain index field with a first time domain index identifying one of a first plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests; and after receiving the MAC message, receiving a Radio Resource Control (RRC) message from the node of the RAN, wherein the RRC message includes a second time domain index field larger than the first time domain index field with a second time domain index identifying one of a second plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests, and wherein the first plurality of time domain resources is different than the second plurality of time domain resources. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of operating a wireless terminal in a radio access network (RAN), the method comprising:
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receiving a first Medium Access Control (MAC) message from a node of the RAN, wherein the first MAC message includes a first Control Element (CE) defining an assignment of resources for dedicated scheduling requests (D-SRs) available for the wireless terminal to transmit dedicated scheduling requests to the node, and wherein the first Control Element includes a D-SR message type identifier and an Assign/Revoke field having a first Assign/Revoke value; after receiving the first MAC message, receiving a second MAC message from the node of the radio access network wherein the second MAC message includes a second Control Element (CE) including the D-SR message type identifier and an Assign/Revoke field having a second Assign/Revoke value different than the first Assign/Revoke value; and after receiving the second MAC message including the Assign/Revoke field with the second Assign/Revoke value, transmitting a random access scheduling request to the node of the radio access network responsive to determining that uplink data is available for transmission.
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20. A wireless terminal operating in a radio access network (RAN), the wireless terminal comprising:
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a transceiver configured to provide radio communications with a node of the radio access network; and a processor coupled to the transceiver, wherein the processor is configured to, receive a Medium Access Control (MAC) message through the transceiver from the node of the radio access network, wherein the MAC message includes a Control Element (CE) defining a first assignment of resources for dedicated scheduling requests (D-SRs) available for the wireless terminal to transmit dedicated scheduling requests to the node, wherein the CE includes a code frequency domain index field with a code frequency domain index identifying one of a plurality of code frequency domain resources available for the wireless terminal to transmit dedicated scheduling requests and a first time domain index field with a first time domain index identifying one of a first plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests; and receive a Radio Resource Control (RRC) message from the node of the RAN after receiving the MAC message, wherein the RRC message includes a second time domain index field larger than the first time domain index field with a second time domain index identifying one of a second plurality of time domain resources available for the wireless terminal to transmit dedicated scheduling requests, and wherein the first plurality of time domain resources is different than the second plurality of time domain resources.
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Specification