Apparatus and Method For Handling Control Channel Reception/Decoding Failure In A Wireless VoIP Communication System
First Claim
1. A method of operating a communication network comprising:
- defining a set of mobile stations as a group;
defining a set of resources for allocation to said group;
reserving at least one resource as a failure handling resource;
sending control information to said group including indication of said set of resources and said failure handling resource;
sending common control information to the group indicating resource assignments;
determining that a specific mobile station of said group cannot reliably decode said common control information;
assigning said failure handling resource to said specific mobile station; and
sending data to said specific mobile station using said failure handling resource.
4 Assignments
0 Petitions
Accused Products
Abstract
A base station (103) assigns a set of mobile stations (101) to a group wherein the group will share a set of radio resources (710). A shared control channel information element (501) is sent to the group of mobile stations (101) and provides a bitmap having fields for group ordering (511), resource allocations (530), failure handling resources (540), and an ordering pattern (513). If a mobile station fails to decode the shared control channel information element (501) it will access the failure handling resources in order to receive data. The failure handling channel may be persistent in some embodiments, or may be released after the mobile station is once again able to decode the shared control channel information element (501) and thereby share in the shared resource pool allocated to its mobile station group.
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Citations
22 Claims
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1. A method of operating a communication network comprising:
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defining a set of mobile stations as a group; defining a set of resources for allocation to said group; reserving at least one resource as a failure handling resource; sending control information to said group including indication of said set of resources and said failure handling resource; sending common control information to the group indicating resource assignments; determining that a specific mobile station of said group cannot reliably decode said common control information; assigning said failure handling resource to said specific mobile station; and sending data to said specific mobile station using said failure handling resource. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating a mobile station comprising:
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storing a set failure handling channel identifiers; communicating in a Voice-over-Internet-Protocol session using a common control channel received from a base station; determining that said common control channel cannot be reliably decoded; and performing blind detection of said set of failure handling channel identifiers sequentially until a channel is detected. - View Dependent Claims (13)
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14. A method of operating a mobile station comprising:
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storing a set failure handling channel identifiers; communicating in a Voice-over-Internet-Protocol session using a shared control channel received from a base station; determining that a common control channel cannot be reliably decoded; receiving identification information of an assigned failure handling resource in a message sent via a control channel receiving data on said assigned failure handling resource.
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15. A base station comprising:
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a transceiver; a processor coupled to said transceiver, said processor configured to; define a set of mobile stations as a group; define a set of radio resources for allocation to said group; reserve a subset of said radio resources as a failure handling set; send control information to said group including indication of said failure handling set; send a common control channel to the group indicating resource assignments; determine that a specific mobile station of said group cannot reliably decode said common control information; assign one radio resource of said failure handling set to said specific mobile station; and send data to said specific mobile station using said radio resource. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification