Radio resource management for packet-switched voice communication
Techniques are disclosed relating to informing a network that a UE desires packet-switched voice communication. In one embodiment, a method includes receiving first information from a UE device requesting voice communication over a packet-switched network. In this embodiment, the method further includes transmitting, in response to the first information, second information to a base station serving the UE device, wherein the second information indicates that the UE device is requesting voice communication over the packet-switched network. In this embodiment, the transmitting is performed prior to establishment of a dedicated bearer by the base station for the UE device. In this embodiment, the second information operates to configure communications between the base station and the UE device to provide a particular quality of service for the packet-switched voice communication using the dedicated bearer.
1. A method, comprising:
receiving, by a base station prior to establishment of a dedicated bearer for IP multimedia subsystem (IMS) signaling for a user equipment (UE) device, first information from the UE device in a radio resource control (RRC) connection request message, wherein the first information indicates that the UE is requesting at least one of voice or video communication over a packet-switched network; and
initiating, by the base station in response to the first information, configuration of a dedicated bearer for IMS signaling for the UE device, wherein the configuration is based on the first information; and
using, by the base station, the dedicated bearer for IMS signaling and a dedicated IMS voice or video data bearer for the voice or video communication.
2. The method of claim 1 , wherein the RRC connection request message is received in conjunction with a SIP invite to a Proxy Call Session Control Function (PCSCF) unit.
3. The method of claim 1 , wherein the RRC connection request message is received after establishment of a default bearer for the UE device.
4. An apparatus, comprising:
one or more processors;
one or more memories storing program instructions that are executable to cause the apparatus to perform operations comprising:
receiving, prior to establishment of a dedicated bearer for IP multimedia subsystem (IMS) signaling for a user equipment (UE) device, first information from the UE device in a radio resource control (RRC) connection request message, wherein the first information indicates that the UE is requesting at least one of voice or video communication over a packet-switched network; and
initiating, in response to the first information, configuration of a dedicated bearer for IMS signaling for the UE device, wherein the configuration is based on the first information; and
use the dedicated bearer for IMS signaling and a dedicated IMS voice or video data bearer for the voice or video communication.
5. The apparatus of claim 4 , wherein the RRC connection request message is received in conjunction with a SIP invite to a Proxy Call Session Control Function (PCSCF) unit.
6. The apparatus of claim 4 , wherein the RRC connection request message is received after establishment of a default bearer for the UE device.
7. An apparatus, comprising:
one or more memories; and
one or more processors configured to execute instructions stored on the one or more memories to:
transmit, to a base station prior to establishment of a dedicated bearer for IP multimedia subsystem (IMS) signaling for the apparatus, first information in a radio resource control (RRC) connection request message, wherein the first information indicates that the apparatus is requesting at least one of voice or video communication over a packet-switched network;
wherein the first information operates to configure a dedicated bearer for IMS signaling for the apparatus, wherein the configuration is based on the first information; and
using the dedicated bearer for IMS signaling and a dedicated IMS voice or video data bearer for the voice or video communication.
8. The apparatus of claim 7 , wherein the apparatus is configured to transmit the RRC connection request message is received in conjunction with a SIP invite to a Proxy Call Session Control Function (PCSCF) unit.
9. The apparatus of claim 7 , wherein the RRC connection request message is transmitted after establishment of a default bearer for the apparatus.
10. A non-transitory computer-readable medium having instructions stored thereon that are executable by a UE device to perform operations comprising:
transmitting, to a base station prior to establishment of a dedicated bearer for IP multimedia subsystem (IMS) signaling for the UE device, first information in a radio resource control (RRC) connection request message, wherein the first information indicates that the UE device is requesting at least one of voice or video communication over a packet-switched network;
wherein the first information operates to configure a dedicated bearer for IMS signaling for the UE device, wherein the configuration is based on the first information; and
using the dedicated bearer for IMS signaling and a dedicated IMS voice or video data bearer for the voice or video communication.
11. The non-transitory computer-readable medium of claim 10 , wherein the UE device is configured to transmit the RRC connection request message is received in conjunction with a SIP invite to a Proxy Call Session Control Function (PCSCF) unit.
12. The non-transitory computer-readable medium of claim 10 , wherein the RRC connection request message is transmitted after establishment of a default bearer for the UE device.