1. A method of protocol configuration in a wireless communication system, comprising:
receiving a Dynamic Host Configuration Protocol (DHCP) message, including protocol configuration information of a mobile station, at an access service network device; and
relaying at least a portion of the protocol configuration information to a data server to which the mobile station seeks access, wherein
the protocol configuration information is translated to a protocol used by the access service network device and the data server, before relaying the protocol configuration information.
2. The method of claim 1, wherein the wireless communication system includes a WiMAX communication system.
3. The method of claim 1, wherein the protocol used by the access service network device and the packet data network is PMIP6.
4. The method of claim 1, wherein the protocol configuration information includes at least one of a domain name server (DNS) and a proxy-call session control function (P-CSCF) required to initiate an IP session.
5. The method of claim 4, wherein the protocol configuration of the mobile station is IPv4.
6. The method of claim 5, further comprising:
establishing a tunnel to the data server; and
relaying the DHCP message to the data server, without obtaining additional protocol configuration parameters.
7. The method of claim 5, further comprising:
translating at least one of the DNS and the P-CSCF from DHCP protocol to the protocol used by the access service network device and the data server; and
transmitting the translated at least one of the DNS and the P-CSCF to the data server; and
receiving from the data server the at least one of the DNS and the P-CSCF in a protocol configuration option message to be stored.
8. The method of claim 4, wherein the protocol configuration of the mobile station is IPv6.
9. The method of claim 8, further comprising:
establishing a tunnel to the data server; and
relaying the DHCP message to the data server, without obtaining additional protocol configuration parameters.
10. The method of claim 8, further comprising:
translating at least one of the DNS and the P-CSCF from DHCP protocol to the protocol used by the access service network device and the data server;
transmitting the translated at least one of the DNS and the P-CSCF to the data server;
receiving from the data server the at least one of the DNS and the P-CSCF in a protocol configuration option message to be stored; and
supplying protocol information based on the stored protocol configuration option message to the mobile station.
11. A system for protocol configuration in a wireless communication system, comprising:
an access service network device configured to receive a Dynamic Host Configuration Protocol (DHCP) message, including protocol configuration information of a mobile station, and to relay at least a portion of the protocol configuration information to a data server to which the mobile station seeks access, wherein
the protocol configuration information is translated to a protocol used by the access service network device and the data server, before relaying the protocol configuration information.
12. The system of claim 11, wherein the wireless communication system includes a WiMAX communication system.
13. The system of claim 11, wherein the protocol used by the access service network device and the packet data network is PMIP6.
14. The system of claim 11, wherein the protocol configuration information includes at least one of a domain name server (DNS) and a proxy-call session control function (P-CSCF) required to initiate an IP session.
15. The system of claim 14, wherein the protocol configuration of the mobile station is IPv4.
16. The system of claim 15, wherein the access service network device is further configured to:
establish a tunnel to the data server; and
relay the DHCP message to the data server, without obtaining additional protocol configuration parameters.
17. The system of claim 15, wherein the access service network device is further configured to:
translate at least one of the DNS and the P-CSCF from DHCP protocol to the protocol used by the access service network device and the data server; and
transmit the translated at least one of the DNS and the P-CSCF to the data server; and
receive from the data server the at least one of the DNS and the P-CSCF in a protocol configuration option message to be stored.
18. The system of claim 14, wherein the protocol configuration of the mobile station is IPv6.
19. The system of claim 18, wherein the access service network device is further configured to:
establish a tunnel to the data server; and
relay the DHCP message to the data server, without obtaining additional protocol configuration parameters.
20. The system of claim 18, wherein the access service network device is further configured to:
translate at least one of the DNS and the P-CSCF from DHCP protocol to the protocol used by the access service network device and the data server;
transmit the translated at least one of the DNS and the P-CSCF to the data server;
receive from the data server the at least one of the DNS and the P-CSCF in a protocol configuration option message to be stored; and
supply protocol information based on the stored protocol configuration option message to the mobile station.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A shallow trench isolation structure, comprising:
an upper insulating portion and a lower insulating portion in a trench of a substrate, wherein said lower insulating portion comprises a first insulator and an insulating layer on the sidewall and the bottom of said first insulator, said upper insulating portion comprises a second insulator and a buffer layer on the sidewall of said second insulator, said first insulator and said second insulator are connected, and the outer sidewall of said buffer layer and the sidewall of said first insulator are leveled.
2. A shallow trench isolation structure according to claim 1, wherein the material of said buffer layer comprises stress buffer film, silicon nitride, or silicon carbonitride.
3. A shallow trench isolation structure according to claim 1, wherein the material of said first insulator and said second insulator is silicon oxide.
4. A shallow trench isolation structure according to claim 1, wherein said shallow trench isolation structure is an isolating structure between fin field effect transistors.
5. A shallow trench isolation structure according to claim 1, wherein the top surface of said upper insulating portion is higher than the surface of said substrate.
6. A shallow trench isolation structure according to claim 1, further comprising a pad oxide layer and a hard mask layer formed on said substrate.