throbber
Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`Amendments to the Claims:
`
`This listing of claims will replace all prior versions, and listings, of claims in the
`
`application:
`
`Listing of Claims:
`
`1.
`
`(Currently Amended) A communication node comprising:
`
`a determiner which, in operation, determines a codec and a codec mode to be used
`
`by—beth a first terminal and a codec and a codec mode to be used by a second terminal, while the
`
`first terminal and the second terminal perform communication in a—first packet switched network,
`
`before the first terminal performs a handover from the—first packet switched network to a—seeend
`
`circuit switched network that is different from the—first packet switched network, the determiner
`
`determining the codec and codec mode to be used by the first terminal and the codec and codec
`
`mode to be used by the second terminal based on—a—eemmen—part—ameng:
`
`information indicating codecs and codec modes used for communication
`
`in the—first packet switched network from which the handover is performed,
`
`information indicating codecs and codec modes supported by the first
`
`terminal, and
`
`information indicating codecs and codec modes supported by the-second
`
`circuit switched network to which the handover is performed,
`
`wherein, when 1i) a common codec is included in each of the information
`
`indicating codecs and codec modes used for communication in the packet switched network from
`
`which the handover is performed, the information indicating codecs and codec modes supported
`
`by the first terminal, and the information indicating codecs and codec modes supported by the
`
`circuit switched network to which the handover is performed, gii) a range of bit rates indicated by
`
`a first bit rate value and a second bit rate value are included in the information indicating codecs
`
`and codec modes supported by the first terminal, and giii) a plurality of bit rate values for the
`
`common codec is included in the information indicating codecs and codec modes supported by
`
`the circuit switched network to which the handover is performed:
`
`

`

`Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`the determiner determines a common upper-limit value based on the first
`
`bit rate value and the second bit rate value included in the information indicating codecs and
`
`codec modes supported by the first terminal and the plurality of bit rate values included in the
`
`information indicating codecs and codec modes supported by the circuit switched network to
`
`which the handover is performed, the common upper-limit value being different from the first bit
`
`rate value and the second bit rate value included in the information indicating codecs and codec
`
`modes supported by the first terminal,
`
`the determiner determines that the codec to be used by the first terminal
`
`and the codec to be used by the second terminal is the common codec, and
`
`the determiner determines that the codec mode to be used by the first
`
`terminal and the codec mode to be used by the second terminal is the common upper-limit value;
`
`and
`
`a generator which, in operation, generates first signaling before the first terminal
`
`performs the handover from the—first packet switched network to the—second circuit switched
`
`network, wherein the first signaling indicates the codec and codec mode-determined—by—the
`
`determiner to be used by the first terminal determined by the determiner, and generates second
`
`signaling after the first terminal performs the handover from the—first packet switched network to
`
`the—second circuit switched network, wherein the second signaling requests the second terminal
`
`to communicate using the codec and codec mode to be used by the second terminal determined
`
`by the determiner.
`
`2.
`
`(Currently Amended) The communication node according to claim 1,
`
`wherein, when (i)—the there is no common part—dees—net—exist among the
`
`information indicating codecs and codec modes used for communication in the packet switched
`
`network from which the handover is performed, the information indicating codecs and codec
`
`modes supported by the first terminal, and the information indicating codecs and codec modes
`
`supported by the circuit switched network to which the handover is performed, (ii)—ene—ef—t-he
`
`codecs a first codec used for communication in the—fir—st packet switched network has a
`
`

`

`Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`compatible mode with another a second codec, and (iii) the codecs supported by the first terminal
`
`and the codecs supported by the—second circuit switched network include the-ether second codec,
`
`the determiner determines that the codec to be used by the first terminal is
`
`
`the—ether second codec, and the codec and codec mode to be used by the second terminal are the
`
`first codec and the compatible mode with the-ether second codec—as—the—eedeeand—eedeemede—te
`
`be—used—bthhe—fi-rst—and—seeend—termi-nals, respectively.
`
`3.
`
`(Currently Amended) The communication node according to claim 1,
`
`wherein, when a policy of a service operator is referred to by the communication
`
`node, the determiner determines that the codec and codec mode to be used by the first—and
`
`second—terminals terminal and the codec and codec mode to be used by the second terminal, in
`
`accordance with the policy, and when the policy is not referred to by the communication node,
`
`the determiner determines that the codec and codec mode to be used by the—twe—tenninals first
`
`terminal and the codec and codec mode to be used by the second terminal based on—the_a
`
`common part among the information indicating codecs and codec modes used for
`
`communication in the—fir—st packet switched network, the information indicating codecs and codec
`
`modes supported by the one first terminal, and the information indicating codecs and codec
`
`modes supported by the—second circuit switched network.
`
`4.
`
`(Canceled)
`
`5.
`
`6.
`
`7.
`
`8.
`
`(Canceled)
`
`(Canceled)
`
`(Canceled)
`
`(Canceled)
`
`

`

`Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`9.
`
`(Canceled)
`
`lO.
`
`(Canceled)
`
`11.
`
`(Currently Amended) A communication control method comprising:
`
`determining a codec and a codec mode to be used by—beth a first terminal and_a
`
`codec and a codec mode to be used by a second terminal, while the first terminal and the second
`
`perform communication in a—first packet switched network, before the first terminal performs a
`
`handover from the—fir—st packet switched network to a—seeend circuit switched network that is
`
`different from the—first packet switched network, the determining being based on—a—eemmen—pafi
`
`among:
`
`information indicating codecs and codec modes used for communication
`
`in the—first packet switched network from which the handover is performed,
`
`information indicating codecs and codec modes supported by the first
`
`terminal, and
`
`information indicating codecs and codec modes supported by the—second
`
`circuit switched network to which the handover is performed,
`
`wherein, when (i) a common codec is included in each of the information
`
`indicating codecs and codec modes used for communication in the packet switched network from
`
`which the handover is performed, the information indicating codecs and codec modes supported
`
`by the first terminal, and the information indicating codecs and codec modes supported by the
`
`circuit switched network to which the handover is performed, (ii) a range of bit rates indicated by
`
`a first bit rate value and a second bit rate value are included in the information indicating codecs
`
`and codec modes supported by the first terminal, and (iii) a plurality of bit rate values for the
`
`common codec is included in the information indicating codecs and codec modes supported by
`
`the circuit switched network to which the handover is performed:
`
`the determining includes:
`
`value and the second bit rate value included in the information indicating codecs and codec
`
`determining a common upper-limit value based on the first bit rate
`
`

`

`Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`modes supported by the first terminal and the plurality of bit rate values included in the
`
`information indicating codecs and codec modes supported by the circuit switched network to
`
`which the handover is performed, the common upper-limit value being different from the first bit
`
`rate value and the second bit rate value included in the information indicating codecs and codec
`
`modes supported by the first terminal,
`
`determining that the codec to be used by the first terminal and the
`
`codec to be used by the second terminal is the common codec, and
`
`determining that the codec mode to be used by the first terminal
`
`and the codec mode to be used by the second terminal is the common upper-limit value,
`
`generating first signaling before the first terminal performs the handover from the
`
`first packet switched network to the—second circuit switched network, wherein the first signaling
`
`indicates the codec and codec mode to be used by the first terminal determined by the
`
`determining—te—be—used—bthhe—fi-rst—termi-nal, and
`
`generating second signaling after the first terminal performs the handover from
`
`the—fi-r-st packet switched network to the—second circuit switched network, wherein the second
`
`signaling requests the second terminal to communicate using the codec and codec mode to be
`
`used by the second terminal determined by the determining.
`
`l2.
`
`(Canceled)
`
`13.
`
`(New) The communication control method according to claim 11,
`
`wherein, when (i) there is no common part among the information indicating
`
`codecs and codec modes used for communication in the packet switched network from which the
`
`handover is performed, the information indicating codecs and codec modes supported by the first
`
`terminal, and the information indicating codecs and codec modes supported by the circuit
`
`switched network to which the handover is performed, (ii) a first codec used for communication
`
`in the packet switched network has a compatible mode with a second codec, and (iii) the codecs
`
`supported by the first terminal and the codecs supported by the circuit switched network include
`
`the second codec:
`
`

`

`Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`the determining includes determining that the codec to be used by the first
`
`terminal is the second codec, and the codec and codec mode to be used by the second terminal
`
`are the first codec and the compatible mode with the second codec, respectively.
`
`14.
`
`(New) The communication control method according to claim 13,
`
`wherein the codec mode to be used by the first terminal determined by the
`
`determining is different from a codec mode used by the first terminal before the handover.
`
`15.
`
`(New) The communication control method according to claim 13,
`
`wherein the codec mode to be used by the second terminal determined by the
`
`determining is different from a codec mode used by the second terminal before the handover.
`
`16.
`
`(New) The communication control method according to claim 11,
`
`wherein, when a policy of a service operator is referred to by the communication
`
`node, the determining includes determining that the codec and codec mode to be used by the first
`
`terminal and the codec and codec mode to be used by the second terminal, in accordance with the
`
`policy, and when the policy is not referred to by the communication node:
`
`the determining includes determining that the codec and codec mode to be
`
`used by the first terminal and the codec and codec mode to be used by the second terminal based
`
`on a common part among the information indicating codecs and codec modes used for
`
`communication in the packet switched network, the information indicating codecs and codec
`
`modes supported by the one first terminal, and the information indicating codecs and codec
`
`modes supported by the circuit switched network.
`
`17.
`
`(New) The communication control method according to claim 11,
`
`wherein the common upper-limit value is different from a bit rate used by the first
`
`terminal before the handover.
`
`

`

`Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`18.
`
`(New) The communication control method according to claim 11,
`
`wherein the common upper-limit value is different from a bit rate used by the first
`
`terminal before the handover.
`
`19.
`
`(New) The communication control method according to claim 11,
`
`wherein the common upper-limit value is a maXimum bit rate value of the
`
`plurality of plurality of bit rate values for the common codec is included in the information
`
`indicating codecs and codec modes supported by the circuit switched network to which the
`
`handover is performed that is within the range of bit rates indicated by the first bit rate value and
`
`the second bit rate value are included in the information indicating codecs and codec modes
`
`supported by the first terminal.
`
`20.
`
`(New) The communication node according to claim 2,
`
`wherein the codec mode to be used by the first terminal determined by the
`
`determining is different from a codec mode used by the first terminal before the handover.
`
`21.
`
`(New) The communication node according to claim 2,
`
`wherein the codec mode to be used by the second terminal determined by the
`
`determining is different from a codec mode used by the second terminal before the handover.
`
`22.
`
`(New) The communication node according to claim 1,
`
`wherein the common upper-limit value is different from a bit rate used by the first
`
`terminal before the handover.
`
`23.
`
`(New) The communication node according to claim 1,
`
`wherein the common upper-limit value is different from a bit rate used by the
`
`second terminal before the handover.
`
`

`

`Application No. 15/788,722
`Reply to Office Action dated June 15, 2020
`
`24.
`
`(New) The communication node according to claim 1,
`
`wherein the common upper-limit value is a maximum bit rate value of the
`
`plurality of plurality of bit rate values for the common codec is included in the information
`
`indicating codecs and codec modes supported by the circuit switched network to which the
`
`handover is performed that is within the range of bit rates indicated by the first bit rate value and
`
`the second bit rate value are included in the information indicating codecs and codec modes
`
`supported by the first terminal
`
`

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