TWM300924U - Wireless communication apparatus for utilizing media independent handover capability information - Google Patents

Description

M300924 VIII. New description: [New technical field] / This creation is related to a kind of wireless communication device, and more specifically, this creation is related to the use of media independent transfer (media i but ndent handover 'MIH) ability Device for handing over information. [Prior Art] Currently, there are many different types of wireless networks deployed to provide the special services that each WAN network wants. For example, wireless local area networks (WLANs) , D, ffiEE g〇2 χχ As the basic road, it will provide the service rate in the pure _ towel, and the same as the cellular network, for example, the mobile telecommunication system (UMTS) The network will provide relatively (four) lower (four) volume data rate services in a very large coverage area that supports high-speed mobile.臓 802.21 MIH 6 has been proposed for a seamless handover between these heterogeneous networks to enable continuous reception of services while roaming around these heterogeneous networks. MIH may not be able to support all networks, and the supported MIH mode may also vary with the network. Therefore, it is necessary to provide wireless_receiving unit (WTRU) MIH capability. Information (for example, whether a wireless network supports MIH, and, if it is supported, the MIH of the = mode is supported). [New content] 5 M300924 The present invention relates to a device for handing over media independent handover (MIH) capability information in a wireless communication system, wherein the wireless communication system includes different deployments. A plurality of wireless networks under a wireless communication protocol, a multi-mode wireless transmit/receive unit (WTRU) can perform a handover from one wireless network to another wireless network for performing Continuous receiving service, and the wireless network will use one to indicate whether the wireless network supports MIH service and

A signal of the supported MIH mode is sent to the WTRU, which then receives the signal and derives a handover decision based on the information. [Embodiment] Hereinafter, the proper noun "WTRU" includes, but is not limited to, a user.

Let (userequipment, UE), a mobile workstation, a fixed or mobile subscriber unit, a call, or any other type of device capable of operating in a wireless environment. As mentioned later, the proper noun "base station," and access point (AP) includes, but is not limited to, - Node B, a location controller, or any interface that can be interfaced in a wireless environment. Other devices. The special imitation of the present invention can be incorporated into an integrated circuit (Ic) or constructed in a circuit including a plurality of interconnecting members. Fig. 1 shows the construction according to the present creation. - an exemplary letter system. The system includes a plurality of wireless network cuts and called "mn", and the plurality of wireless networks are simultaneously deployed in different wireless "mechanical" to provide special services. Gambling 'the purchase of the village ton--the honeycomb network M3 00924 road 110 and the plurality of wireless local networks llla-llln, the cellular network 11 〇 can be a second-generation partner (also ird generati〇n 3) The network, or the 3GPP2 network, and the wireless local area network llla-llln can be based on an IEEE 802-based network (for example, 8〇2·ΐι baseline, 802.11a, 802.11b, 802.11g, 802.11j, 802.11n, 802.11e, 8G2.11S, 802.11 k, 802.1W, 802.15, 802.16, and 802.21 networks), Bluetooth network, HIPERLAN/2, or any other type of network, wherein the cellular network includes multiple cells Element 112, and its parent will be covered by a base station 114, and the WLANs ma - llln will be served by APs 1221 - 1222n, respectively.

When a WTRU 130 roams near an area where multiple heterogeneous networks are deployed and llla-llln (e.g., cellular networks and wlans), the WTRU 130 will need, quickly, to the relevant user The requirements of the service are required to determine the most suitable network. For example, a visual application may require a high bandwidth channel, and at the same time, a voice application may be a low bandwidth channel. Moreover, the speed at which the WTRU 130 finds a suitable network depends on its ability to retrieve network information from its available network. According to the present invention, the network 110 and the 111-llln, preferably, transmit MIH capability information to the WTRU 130 via a broadcast channel, and the MIH capability information can be transmitted through a wired or The wireless medium transmits the data. Further, the MIH capability information not only indicates that the network supports the MIH service, but also indicates the supported ^^!^ mode, wherein the MIH service system is included for transmitting Information, events, and instructions are handed over to the 7 M300924's information services, event services, and command services. The supported MIH mode will include the network's supported [v]I[IH function. Information, the WTRU 130 can derive a smart decision as to whether the particular network should be considered when handing over. For example, the service can be through Layer 2 (L2) programs and information, or through Layer 3 (L3) programs and information (for example, Internet Protocol (IP)). Provided. The second spring diagram shows an LLC encapsulated MAC PDU 200 for delivering MIH services in accordance with the present invention, the MAC PDU 200 including a MAC header 202, an LLC header 204, and an RFC 1042 package. 206, an Either Type block 208' frame body 210, and a frame check sequence (FCS) field 212, wherein the LLC header 204 The system includes a sub-network access protocol (SNAP) destination service access point (DSAP) intercept 214, and a SNAP source service access point (source • service accessP〇int, SSAP). Blocking 218, and a control field 218, the RFC 042 package 206 and the alternative type field 208 are used to carry ip datagrams (fine legs) over the IEEE 802 network, Providing MIH services The MIH protocol can be transported through an L2 transport by defining a new alternative type 208 that uniquely identifies the MIH protocol, and an MIH header 220 and an MIH protocol payload (using an LLC package) The payload 222 is included in the frame body 21〇.

Alternatively, a higher level agreement, such as IP, can be used to achieve similar results. Figure 3 shows an IP frame 300 for delivering MIH M3 00924 services in accordance with the present invention, wherein the MIH service is defined by the new protocol ID 302 and the encapsulation falls on the IP frame 3 - The MIH agreement within the range of data interception 3〇4 is transmitted through a positive frame. The present invention will provide the WTRU with the means to determine which transmission method will be supported in a particular network, and this information is provided through the MIH mode parameters. Since there is not much space available on the current broadcast channel, • the information used to convey MIH capability information should be described as the minimum number of bits, preferably 一个 'one bit' in addition to a simple The bit map will provide a quick indication of the capabilities of the network no and illallln regarding the MIH function of the WTRU 130. However, if more space is available, then more Bits (for example, a full octet) provide more information, as shown in Figure 4. An exemplary bit map using two bits, B0 and B1, is explained later. A combination of two bits will indicate the network 1

• Does Uh-Πΐn support the MIH service and the supported MIh mode, for example, if 'B1 = '〇' and B0 = '0', then this means that the network 110 and 111a-llln are not Any MIH service will be provided, however, in such an example, the WTRU 130 may still be able to obtain MIH services over an IP connection, if Β1 = ς0' and B0 two '1, then this means The network 110 and Iliallll provide some MIH services, and the information service system can connect to the Ethernet connection and through the L2 program without split transmission on the IP connection. And access (such as shown in Figure 2), if B1 = T and B0 = T M3 00924, then this means that the network 110 and π la- 11 In will provide MIH services, and the information service can Through one; [P connection, and access through both L2 program and L3 program (as shown in Figure 3), if B1 = 61, and B0 = '0', then this means the network N〇 and illa-ι11η can provide some MIH services ( That is, the command and event service), but can only service information (i.e., via ip L3 is connected via a program) access. Figure 5 is a diagram showing an exemplary bit map of ΜΙΗ capability information transmitted in a capability information field 500 of a beacon frame in a ΙΕΕΕ 8〇2·η network in accordance with the present invention. In this example, a support bit 502 and a mode bit 504 are added to the capability block 500 of the beacon frame, while the 实例 and Β1 in the previous example are It is replaced by the ΜΙΗ support bit 502 and the ΜΙΗ mode bit 504, respectively. Figure 6 shows an exemplary bit map for transmitting ΜΙΗ capability information in a 〇8〇2.16 network in accordance with the present creation. ΙΕΕΕ 8〇216 Department of the media group access control (mediuni access control (MAC) management information, including a user station (SS) basic capability request (SBC-REQ) information and a ss basic Capability response (SBC-RSP), wherein the sbc-req and SBC-RSP are exchanged between a WTRU and a network during the initial period, and a WTRU will Generating the SBC-REQ information and transmitting it to the network, the WTRU including supported physical parameters and bandwidth allocation among the SBC-REq, and then, in response to the SBC-REQ Information, the network will send the information, and the network will respond to the sub-set of capabilities presented in the i4SBC_REQ message to indicate whether it can be used by the M300924. According to this creation, a new MAC management information type for SBC-REQ and SBORSP will be defined for MIH support, and Figure 6 shows an exemplary IEEE 802.16 bit map for this purpose, where The element #〇 is reserved, and the bit #1 is set to indicate that no MIH is supported by the network, and the bit #1 set to '1' indicates that the MIH service supported by the network is set. For the '〇, the bit #2 indicates that the MIH information can be accessed via Ethernet transport, and the bit #2 set to '1' indicates that the MIH information can be transmitted over IP. access. As for other bits, it can be used to pass other capability information. Referring again to Figure 4, an exemplary bitmap map for transmitting mih capability information in accordance with the present application and utilizing a full octet is shown therein. A first bit, B0, indicates whether the network supports the MIH service (that is, if B0 = '1', this means that the network supports the Mffi service, and if β〇= '〇' , that is, the network does not support the MIH service. If the network supports the MIH service (that is, B0 = 'l,), then extra bits (in the example of Figure 4, 7 bits, B1 - B7) will provide further information about the ability of the network to deliver these services. Furthermore, if it is β1 2', then this means that the MIH service can be If you need to contact a separate network entity, you can access it. If B丨='丄, 日守' means that the network does not support MIH through 12 programs. Service (in particular, information service), therefore, the WTRU needs to contact the information server through an L3 transmission, and if β2 is set (ie, B2: '1'), then this means , the network will provide cellular integration (four) gamma M300924 ^ (four) (four) support, and if so Line setting (i.e., B3 = 'Γ) Ν ·' is namely that said scale table provides support ιεεε Xie .16. As for the bit, it can be used to pass other capability information. It should be noted that the bit maps shown in Figures 4 to 6 are provided as examples, not as limitations, and any changes are possible. A block diagram of a WTRU 700 in accordance with one of the present teachings is shown. The WTRU 700 includes a receiver 7〇2, and a handover controller 704, wherein the receiver 7〇2 is configured to receive a transmission. Information from a network, and the handover controller 〇4 is constructed to retrieve ΜΙΗ information from the information, and the information is indicated, as described in the foregoing Whether the wireless network supports the service and a supported mode' then, the handover controller 704 performs a handover based on the information, and further, the WTRU 700 can further include a Transmitter 706 is configured to send a request to the network, requesting the information, whereby the information can be sent in response to the request. Although the features and components of the present work are special Knot The preferred embodiments are described, but each feature, or component, may be used alone or in combination with other features and elements of the preferred embodiment, or in combination or without Used in the case of other features and components of the creation. 12 Obtained, in which the first figure shows the construction according to the creation - an exemplary system without system;

M3 00924 [Simple description of the drawing] A more detailed explanation of the creation can be made by the following description of the secret cow 's mm The figure shows a medium access c〇ntr〇1 (MAC) protocol data unit (PDU) with a logical link control (coffee) package for transmitting MIH according to the present invention. Service; Figure 3: The system displays a p-frame for delivering MIH services in accordance with one of the creations; Figure 4: The system displays the MIH using a full octet (full 〇ctet) according to the present creation. An exemplary bit map of capability information; Figure 5: shows an exemplary bit map for transmitting MIH capability information in a capability information block of a beacon frame according to the present creation; Figure 6: shows an exemplary bit map for transmitting MIH capability information in accordance with one of the present works; and Figure 7: shows a block diagram of a WTRU in accordance with one of the present works. 13 M300924

[Main component symbol description] 100 Wireless communication system 110 Honeycomb network 111 Wireless local area network 112 Cell 130, 700, WTRU Wireless transmission/reception unit 300 IP frame AP Access point B1-7 Bit BS Base station DSAP Purpose Service Access Point FCS Frame Check Sequence IP Internet Protocol MAC Media Access Control MIH Media Independent Handover PDU Protocol Data Unit SBC-REQ User Station Basic Capability Requirements SBC-RSP User Station Basic Capability Response SNAP Secondary Network Access Protocol SSAP Source Service Access Point 14

Claims (1)

M300924 .· 笟m IX. Patent Application Range: 1 · A wireless transmission/reception unit (WTRU) for use in a wireless communication system, the wireless communication system including multiple wireless networks deployed under different wireless communication protocols Wherein the WTRU is configured to perform a handover from a wireless network to a further wireless network for continuous reception services, the WTRU comprising • a receiver configured to receive a message from a network, wherein the information includes a media independent handover information of the network; and a handover controller coupled to the receiver for self-sufficiency The receiver receives the information and is configured to retrieve Media Independent Handover (MIH) information from the information, wherein the Media Independent Handover (MIH) information indicates whether the wireless network supports Media Independent Handover (MIH) The service and a supported Media Independent Handover (MIH) mode perform a handover based on the Media Independent Handover (MIH) information. 2. The WTRU according to claim 1 of the scope of claim 1 wherein the information is broadcast, and thus the receiver | receives the information via a broadcast channel. 3. The WTRU of claim 2, wherein the information is included in a beacon frame, and whereby the receiver is via the k-frame And receiving the information. 4. The WTRU of claim 3, wherein the information is included in a capability information block of the beacon frame, and thereby the receiver The information is received via the capability information by 15 bits. According to the wireless transmission/reception unit (WTRU) of claim 1, wherein the information indicates whether the information service is delivered through the Ethernet, and whether the information service is delivered through an internet protocol (positive) , hive integration support, and at least one of the EE8〇216 support. The WTRU of claim 1 further includes a transmitter configured to transmit a network, thereby requesting said information, and thereby said information will respond to said request And send it. The WTRU of claim 6 wherein said information is an IEEE 802.16 Medium Access Control (MAC) management information. The wireless transmitting/receiving unit (WTRU) according to claim 7, wherein the information is a subscriber station (SS) basic capability response (SBS-RSP) information, and the request is a subscriber station ( ) Basic Capability Requirements (SBS-REQ) information.