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A system in which a packet-sending entity and a packet-receiving entity communicate using a plurality of parameter signaling channels (SCCH) and also using a plurality of shared data channels (SDCH) and do so according to a protocol in which when packet data are transmitted over one or more transmis

A system in which a packet-sending entity and a packet-receiving entity communicate using a plurality of parameter signaling channels (SCCH) and also using a plurality of shared data channels (SDCH) and do so according to a protocol in which when packet data are transmitted over one or more transmission time intervals (TTIs), the communication being such that once a parameter signaling channel is assigned to the packet-receiving entity for communicating a packet, the assigned channel is used in each subsequent TTT as long as there is at least a portion of the packet in the subsequent TTI. When there is, the packet-receiving entity despreads and decodes only one parameter signaling channel for the subsequent TTI along with the data channels. When there is not, the packet-receiving entity despreads all the parameter signaling channels for the subsequent TTI, and may decode some or all of the parameter signaling channels.

대표청구항 ▼

A system in which a packet-sending entity and a packet-receiving entity communicate using a plurality of parameter signaling channels (SCCH) and also using a plurality of shared data channels (SDCH) and do so according to a protocol in which when packet data are transmitted over one or more transmis

A system in which a packet-sending entity and a packet-receiving entity communicate using a plurality of parameter signaling channels (SCCH) and also using a plurality of shared data channels (SDCH) and do so according to a protocol in which when packet data are transmitted over one or more transmission time intervals (TTIs), the communication being such that once a parameter signaling channel is assigned to the packet-receiving entity for communicating a packet, the assigned channel is used in each subsequent TTT as long as there is at least a portion of the packet in the subsequent TTI. When there is, the packet-receiving entity despreads and decodes only one parameter signaling channel for the subsequent TTI along with the data channels. When there is not, the packet-receiving entity despreads all the parameter signaling channels for the subsequent TTI, and may decode some or all of the parameter signaling channels. the frame. 11. The method according to claim 10 wherein the placing step further comprises: replacing at least one of the interleaved information bits at the beginning of the frame with the at least one corresponding rate-indicating bit. 12. The method according to claim 6 wherein the assembling step further comprises the step of: reserving a space at the beginning of the frame for the at least one rate-indicating bit, the reserved space being restricted with respect to the presence of the information bits. 13. The method according to claim 6 wherein the placing step further comprises: puncturing two rate-indicating bits at the beginning of the frame to indicate the information rate of a group of trailing frames trailing the frame. 14. The method according to claim 6 further comprising the step of: measuring an error rate of the information bits over a plurality of successive measurement periods determined based upon decoding the at least one rate-indicating bit. 15. A method for controlling signal power in a communications system, the method comprising the steps of: receiving a frame including information bits having an information rate and including at least one rate-indicating bit at a beginning of the frame to indicate the information rate; determining a ratio between the information rate and a transmission rate of the frame; and measuring a signal performance parameter associated with the information bits, with consideration of the determined ratio. 16. The method according to claim 15 wherein the measuring step includes measuring an error rate as the signal performance parameter. 17. The method according to claim 15 further comprising the step of measuring an error rate, as the signal performance parameter, after decoding the at least one rate-indicating bit. 18. The method according to claim 17 further comprising the step of: controlling downlink transmit power based on the measured error rate. 19. The method according to claim 18 wherein the controlling step further comprises: sending an uplink signal containing power adjustment data for the downlink transmit power. 20. The method according to claim 15 further comprising the step of measuring an error rate, as the signal performance parameter, after decoding the at least one rate indicating bit and prior to decoding the entire frame. 21. The method of claim 15 further comprising the step of: controlling downlink transmit power based on the measured signal performance parameter to maintain a target signal performance parameter. 22. A method for controlling signal power in a communications system, the method comprising the steps of: receiving a frame including information bits having a vocoding rate and including at least one rate-indicating bit at a beginning of the frame for indicating the vocoding rate; determining a ratio between the vocoding rate and a transmission rate of the frame; and measuring a signal-to-noise ratio associated with the information bits based on the ratio. 23. The method according to claim 22 further comprising the step of: estimating the signal-to-noise ratio for an electromagnetic signal underlying the frame, the signal-to-noise ratio being determined by noncoherently integrating signal power per information bit over an integration period corresponding to the vocoding rate. 24. The method according to claim 23 wherein the estimating step includes noncoherently integrating channel bits representing information bits on a one-to-one basis if a vocoding rate is at a full rate. 25. The method according to claim 22 wherein the measuring step includes measuring a signal power over a repetition-group duration during reception of a repetition group within the frame. 26. The method according to claim 22 further comprising the step of controlling downlink transmit power based on the measured signal to noise ratio. 27. A vocoder comprising: a frame assembler for assembling a frame including inform ation bits at a voding rate for a downlink signal transmission over a traffic channel as channel bits at a channel rate; a rate indicator for placing a t least one rate-indicating bit at a beginning of the frame to indicate the vocoding rate; and a receiver for receiving an uplink signal with power level adjustment data for the downlink signal determined based upon a signal performance parameter of the downlink signal transmission and the vocoding rate indicated by the at least one rate-indicating bit; wherein the power level adjustment data is based on a ratio of an information rate and a transmission rate of a previously sent frame. 28. The vocoder according to claim 27 wherein the frame assembler further comprises an encoder for encoding the information bits, a symbol repeater for repeating the encoded information bits in conformance with the vocoding rate, and an interleaver for interleaving the repeated information bits within at least one frame. 29. The vocoder according to claim 27 wherein the rate indicator is adapted to puncture the at least one rate indicating bit into the interleaved information symbols. 30. The vocoder according to claim 27 wherein rate indicator is adapted to reserve a space at the beginning of each frame for the at least one rate indicating bit. 31. A mobile station comprising: a transceiver for receiving a frame including information bits having an information rate and including at least one rate-indicating bit at a beginning of the frame to indicate the information rate; a processor for determining a ratio between the information rate and a transmission rate of the frame; and a measurer for measuring a signal performance parameter associated with the information bits, with consideration of the determined ratio. 32. The mobile station according to claim 31 wherein the signal performance parameter comprises an error rate. 33. The mobile station according to claim 31 wherein the measurer is adapted to measure an error rate, as the signal performance parameter, after decoding the at least one rate-indicating bit and prior to decoding the entire frame. 34. The mobile station according to claim 31 further comprising: a downlink power controller for controlling downlink transmit power based on the measured error rate. 35. The mobile station according to claim 31 further comprising: an integrator for noncoherently integrating over the channel bits to determine a checking vocoding rate for checking against the vocoding rate indicated by the at least one rate indicating bit. es and for controllably admitting said cells into said processing queue for output of said cells on one of a plurality of output queues, each one of said input sources supporting a plurality of ATM connections, said forward performance monitoring cells respectively containing a count of cells output through said processing queue and corresponding to one of said ATM connections, said apparatus comprising: (a) performance monitoring means for monitoring said processing queue to detect and maintain, for each one of said ATM connections, a count of passage through said processing queue of each cell corresponding to said one of said ATM connections; (b) cell transmission means coupled between said performance monitoring means and said access control means, said cell transmission means for transmitting interim cells corresponding to said respective ATM connections from said performance monitoring means to said access control means for controlled admission of said interim cells through said access control means into said processing queue; said performance monitoring means further for: (i) monitoring said processing queue to detect the presence of said interim cells in said processing queue, while continuing to maintain said counts; and, (ii) while any particular one of said interim cells remains within said processing queue, storing in said one of said interim cells said count for said one of said ATM connections corresponding to said one of said interim cells, thereby converting said one of said interim cells into said forward performance monitoring cell. 11. Apparatus for inserting a forward performance monitoring cell into a processing queue coupled to an access controller coupled to receive ATM cells from a plurality of input sources and controllably admit said cells into said processing queue for output of said cells on one of a plurality of output queues, said forward performance monitoring cell containing a count of cells output through said processing queue and corresponding to a selected ATM connection, said apparatus comprising: (a) a performance manager coupled to said processing queue to detect and maintain a count of passage through said processing queue of each one of said cells corresponding to said selected ATM connection; (b) an interim cell transmitter coupled between said performance manager and said access controller to transmit an interim cell from said performance manager to said access controller for controlled admission of said interim cell through said access controller into said processing queue;