Configuring radio resources

1. A method, performed by a wireless device, for managing radio resources in the wireless device, the method comprising the wireless device: receiving a message configuring a plurality of radio bearers for use by the wireless device, wherein the message includes a bearer-specific pdcp-Config Information Element for each of one or more of the radio bearers; checking the bearer-specific pdcp-Config Information Element associated with a first radio bearer of the plurality of radio bearers for a ciphering configuration setting enabling or disabling ciphering for the first radio bearer, wherein the ciphering configuration is located after an extension marker of the bearer-specific pdcp-Config Information Element; and performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with the received message, wherein the performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with the received message comprises: if the message includes a ciphering configuration setting for the first radio bearer, performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with the ciphering configuration setting included in the message; and if the message does not include a ciphering configuration setting for the first radio bearer, performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with a reference ciphering configuration setting for the first radio bearer.

2. The method of claim 1 , wherein: if the first radio bearer configured by the message is not part of the current configuration for the wireless device, the reference ciphering configuration setting comprises a default ciphering configuration setting; and if the first radio bearer configured by the message is part of the current configuration for the wireless device, the reference ciphering configuration setting comprises the existing ciphering configuration setting for the first radio bearer.

3. The method of claim 1 , wherein the message comprises a Radio Resource Control Connection Reconfiguration message or a Radio Resource Control Reconfiguration message.

4. The method of claim 1 , wherein the checking the message comprises checking an Information Element inside a RadioBearerConfig Information Element.

5. The method of claim 1 , wherein the ciphering configuration setting comprises an optional parameter, the optional parameter comprising a single bit indicating if ciphering should be enabled or disabled.

6. A method, performed by a base station, for configuring radio resources for use by a wireless device, the method comprising the base station: generating a message configuring a plurality of radio bearers for use by the wireless device, wherein the message includes a bearer-specific pdcp-Config Information Element for each of one or more of the radio bearers; including., in the bearer-specific pdcp-Config information Element associated with a first radio bearer of the plurality of radio bearers, a ciphering configuration setting enabling or disabling ciphering for the first radio bearer, wherein the ciphering configuration is inserted after an extension marker of the bearer-specific pdcp-Config Information Element; and transmitting the message to the wireless device, further comprising: comparing the ciphering configuration setting for the first radio bearer to a reference ciphering configuration setting for the first radio bearer; and including the ciphering configuration setting for the first radio bearer in the generated message only if the ciphering configuration setting differs from the reference ciphering configuration setting.

7. The method of claim 6 wherein:

if the radio bearer configured by the message is not part of the current configuration for the wireless device, the reference ciphering configuration setting comprises a default ciphering configuration setting; and

if the radio bearer configured by the message is part of the current configuration for the wireless device, the reference ciphering configuration setting comprises the existing ciphering configuration setting for the radio bearer.

8. The method of clam 6 , wherein the message comprises a Radio Resource Control, RRC, Reconfiguration message.

9. The method of claim 6 , wherein the ciphering configuration setting comprises an Optional parameter, the optional parameter comprising a single bit indicating if ciphering should be enabled or disabled.

10. A wireless device for managing radio resources in the wireless device, the wireless device comprising: processing circuitry; and power supply circuitry configured to supply power to the wireless device; wherein the processing circuitry is configured to: receive a message configuring a plurality of radio bearers for use by the wireless device, wherein the message includes a bearer-specific pdcp-Config Information Element for each of one or more of the radio bearers; check the bearer-specific pdcp-Config Information Element associated with a first radio bearer of the plurality of radio bearers for a ciphering configuration setting enabling or disabling ciphering for the first radio bearer, wherein the ciphering configuration is located after an extension marker of the bearer-specific pdcp-Config Information Element; and performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with the received message, wherein the performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with the received message comprises; if the message includes a ciphering configuration setting for the first radio bearer, performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with the ciphering configuration setting included in the message; and if the message does not include a ciphering configuration setting for the first radio bearwe, performing at least one of enabling or disabling ciphering for the first radio bearer in accordance with a reference ciphering configuration setting for the first radio bearer.

11. A base station for configuring radio resources for use by a wireless device, the base station comprising; processing circuitry; power supply circuitry configured to supply power to the base station; wherein the processing circuitry is configured to: generate a message configuring a plurality of radio bearers for use by the wireless device, wherein the message includes a bearer-specific pdcp-Config Information Element for each of one or more of the radio bearers; include, in the bearer-specific pdcp-Config Information Element associated with a first radio bearer of the plurality of radio bearers, a ciphering configuration setting enabling or disabling ciphering for the first radio bearer, wherein the ciphering configuration is inserted after an extension marker of the bearer-specific pdcp-Config Information Element; and transmit the message to the wireless device, further comprising: comparing the ciphering configuration setting for the first radio bearer to a reference ciphering configuration setting for the first radio bearer; and including the ciphering configuration setting for the first radio beared in the generated message only if the ciphering configuration setting differs from the reference ciphering configuration setting.