Method, apparatus and system for bearing circuit switched domain service data over radio bearer
First Claim
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1. A method for processing Circuit Switched domain (CS-domain) service data, wherein the CS-domain service data includes a speech service data comprising substreams A, B, and C with different importance classes, the method comprising:
- encapsulating the substreams A, B, and C into a single speech frame;
mapping the speech frame onto a single radio bearer (RB);
encapsulating the RB with radio link control (RLC) protocol;
mapping the RLC to a dedicated traffic channel (DTCH); and
mapping the DTCH to an High Speed Download Packet Access (HSDPA) downlink shared channel (HS-DSCH);
wherein the speech frame comprises;
Frame Type, Payload, and Padding, wherein the Frame Type has a fixed length and represents an Adaptive Multi-Rate (AMR) or Adaptive Multi-Rate Wideband (AMR-WB) coding mode, the payload is a data made up of the concatenated substreams A, B and C, and the padding is a filler bit, when a sum of the frame type and the payload is out of alignment against bytes, several bits are used as a padding to make the whole speech frame aligned against bytes.
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Abstract
A method for bearing CS-domain service data over radio bearer is disclosed. The method includes: letting CS-domain service data be borne over a radio high-speed packet data access channel according to a channel mapping relation between CS-domain service data and the radio high-speed packet data access channel. An apparatus and a system are also provided herein.
35 Citations
10 Claims
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1. A method for processing Circuit Switched domain (CS-domain) service data, wherein the CS-domain service data includes a speech service data comprising substreams A, B, and C with different importance classes, the method comprising:
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encapsulating the substreams A, B, and C into a single speech frame; mapping the speech frame onto a single radio bearer (RB); encapsulating the RB with radio link control (RLC) protocol; mapping the RLC to a dedicated traffic channel (DTCH); and mapping the DTCH to an High Speed Download Packet Access (HSDPA) downlink shared channel (HS-DSCH); wherein the speech frame comprises;
Frame Type, Payload, and Padding, wherein the Frame Type has a fixed length and represents an Adaptive Multi-Rate (AMR) or Adaptive Multi-Rate Wideband (AMR-WB) coding mode, the payload is a data made up of the concatenated substreams A, B and C, and the padding is a filler bit, when a sum of the frame type and the payload is out of alignment against bytes, several bits are used as a padding to make the whole speech frame aligned against bytes. - View Dependent Claims (2, 3, 4)
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5. A communications controller, comprising:
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a processor configured to encapsulate substreams A, B, and C with different importance classes into a single speech frame, wherein the substreams A, B, and C are included in a speech service data of CS-domain service data, to map the speech frame onto a single radio bearer (RB), to encapsulate the RB with radio link control (RLC) protocol, to map the RLC to a dedicated traffic channel (DTCH), and to map the DTCH to an High Speed Download Packet Access (HSDPA) downlink shared channel (HS-DSCH); and a transmitter configured to send the speech frame to a user equipment (UE) by using the HS-DSCH; wherein the speech frame comprises;
Frame Type, Payload, and Padding, wherein the Frame Type has a fixed length and represents an Adaptive Multi-Rate (AMR) or Adaptive Multi-Rate Wideband (AMR-WB) coding mode, the payload is a data made up of the concatenated substreams A, B and C, and the padding is a filler bit, when a sum of the frame type and the payload is out of alignment against bytes, several bits are used as a padding to make the whole speech frame aligned against bytes. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification