Distribution method of uplink block data channel and data transmitting method

A technology of packet data channel and distribution method, applied in data exchange network, digital transmission system, communication between multiple stations, etc. Improve efficiency and ensure compatibility

Active Publication Date: 2007-10-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing protocol, the network allocates the right to use the uplink channel to the terminal user through the uplink state flag (USF, Uplink State Flag) carried by the downlink channel. , for users using new terminals with RTTI functions, the remaining 10ms cannot be used, resulting in a waste of network resources
[0008] Moreover, in the existing protocol, USF is mapped to 4 consecutive time slots of a downlink PDCH, and after the introduction of RTTI, the structure of the Block is no longer like In the existing protocol, it appears on 4 consecutive time slots of a PDCH, but appears on multiple PDCHs. However, when a terminal without RTTI function receives the downlink USF, it still receives 4 consecutive time slots of a downlink PDCH. In this way, the USF value cannot be received correctly, which affects the compatibility of the evolved network with existing terminals

Method used

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  • Distribution method of uplink block data channel and data transmitting method
  • Distribution method of uplink block data channel and data transmitting method
  • Distribution method of uplink block data channel and data transmitting method

Examples

Experimental program
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Embodiment 1

[0030] Embodiment 1, a method for allocating an uplink packet data channel, comprising the following steps:

[0031] 1) The network maps the uplink status identification to each time slot of the corresponding downlink channel; the uplink status identification includes a channel allocation identification and a time slot allocation identification, and the channel allocation identification indicates that the corresponding uplink channel is allowed to be occupied within a specified period of time. user, the time slot allocation identifier indicates that the user is allowed to occupy the time slot of the uplink channel;

[0032] In fact, the channel allocation identifier in the present invention plays the role of the uplink state identifier in the existing protocol. For the sake of brevity, hereinafter, the present invention and the existing uplink state identifier are respectively referred to as the USF of the present invention and the existing USF, The channel assignment identifi...

Embodiment 2

[0039] The second embodiment is a method for allocating an uplink packet data channel. The method in this embodiment is basically the same as that in the first embodiment, except that the CHF and the corresponding control mode of the uplink channel allowed to occupy and the setting of the BF state are different. Compared with the first embodiment, this embodiment is applicable to the case where the network determines that the user uplink channel adopts 4-burst RTTI.

[0040] 00

[0041] Obviously, in this embodiment, the CHF value in one direction of the same channel is unique.

Embodiment 3

[0042] Embodiment 3. A method for allocating an uplink packet data channel. Step 1) of the method in this embodiment is the same as that in Embodiment 1, except that in step 2), the following method is used when the USF of the present invention is put into the downlink channel: Each USF of the present invention is mapped into four consecutive time slots of the corresponding downlink channel.

[0043] In the existing protocol, USF is used as a part of the Media Access Control (MAC, Media Access Control) / Radio Link Control (RLC, Radio Link Control) data header (Header), along with other parts of the header and the data part ( Data) together with the mapping to the downlink channel, as shown in Figure 4, in Figure 4, an RLC block containing USF is mapped to four time slots (5ms) of one TTI (20ms) of the PDCHi channel. The existing USF is usually the first 3 bits of the RLC / MAC header, which is 12 or 36 bits after GMSK or 8PSK encoding alone. The encoded USF and other contents are...

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PUM

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Abstract

A method for distributing uplink packet data channel includes making expansion on USF controlling distribution of uplink channel and furthermore adding time slot distribution identification for distributing time slot at specified time interval on USF and utilizing added time slot identification to distribute different time slot in the same time interval of the same PDCH different user for service.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method for allocating an uplink packet data channel (PDCH, Packet Data CHannel) and a method for sending data. Background technique [0002] With the continuous growth of bandwidth requirements for new mobile services, the high-speed wireless data technology with higher spectrum utilization has increasingly become the focus of attention in the mobile field. At present, the packet data service of the mobile communication network is mainly carried by the General Packet Radio Service (GPRS, General Packet Radio Service) network. The GPRS network is the evolution and extension of the Global System for Mobile communications (GSM, Global System for Mobile communications) network, and mainly adds a packet service part. GPRS still uses the same Gaussian Minimum Shift Keying (GMSK, Gaussian Minimum Shift Keying) modulation method as GSM. Due to the limitation of the sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04L12/56H04L47/30
Inventor 柳光张杰
Owner HUAWEI TECH CO LTD
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