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Method and system for improving single-user peak rate and throughput of TDD (Time Division Duplex) CDMA (Code Division Multiple Access) system

A peak rate, single-user technology, applied in network traffic/resource management, error prevention/detection using return channels, electrical components, etc. question

Inactive Publication Date: 2011-10-19
TD TECH COMM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] One: For a single HSPA user, because the current resource allocation method must require that the code channel resources of multiple time slots are exactly the same, that is, the rectangular allocation method, so that only one time slot resource can be used for uplink scheduling E-PUCH, so single User uplink throughput and peak rate are limited
[0007] Two: Non-E-PUCH time slots ( figure 1 TS2 in TS2) most of the time only 1 / 8-1 / 4 single-slot resources are used, the utilization efficiency of uplink resources is low, and once used, the entire time slot is occupied, and the peak rate of a single user cannot be extended. The current system In , the timing relationship between HS-SCCH and HS-SICH is as follows figure 2 As shown, one of the two uplink time slots is occupied by the HS-SICH channel, and only one time slot is used to transmit the E-PUCH channel

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  • Method and system for improving single-user peak rate and throughput of TDD (Time Division Duplex) CDMA (Code Division Multiple Access) system
  • Method and system for improving single-user peak rate and throughput of TDD (Time Division Duplex) CDMA (Code Division Multiple Access) system
  • Method and system for improving single-user peak rate and throughput of TDD (Time Division Duplex) CDMA (Code Division Multiple Access) system

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Embodiment 1

[0085] Embodiment 1 Taking an application scenario in which four consecutive HS-SCCHs correspond to one HS-SICH feedback time as an example, the solution of the present invention is further described in detail.

[0086] Figure 5 Shown in Embodiment 1 of the present invention are two examples in which four HS-SICHs are bound and sent on one uplink time slot. Two consecutive 10ms time slots are the window length of the binding window, and each binding window Both can support one or more users to schedule at the same time. Figure 5 In , the HS-SCCH of 20ms (that is, 4 downlink time slots) in a row corresponds to the 4 HS-SICHs in the third uplink time slot after the last HS-SCCH time slot, and the corresponding relationship is indicated by the downward arrow express. The two instances can be implemented independently or in cooperation with each other, that is, one NodeB maintains two binding scheduling windows.

[0087] Image 6 It is a schematic diagram of the mapping rela...

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Abstract

The invention provides a method and a system for improving single-user peak rate and throughput of a time-division duplexing code division multiple-access (TDD (Time Division Duplex) CDMA (Code Division Multiple Access)) system. A plurality of HS-SICH channels originally corresponding to independent hybrid automatic repeat request (HARQ) process on different subframes are tied on the time slot ofone subframe by a time delaying method so as to be sent, thus separating a plurality of unoccupied uplink time slots in the uplink time slots originally occupied by the HS-SICH. The separated unoccupied uplink time slots are combined with the original E-PUCH time slots to form a greater E-PUCH resource pond, thus being used for improving the uplink peak rate of the single user or the uplink throughput of the base station.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method and a system for improving the peak rate and throughput of a single user in a Time Division Duplex Code Division Multiplexing (TDDCDMA) system. Background technique [0002] In the existing Time Division Synchronous Code Division Multiplexing (TD-SCDMA) High Speed ​​Packet Access (HSPA) system, when the downlink control signaling High Speed ​​Shared Control Channel (HS-SCCH) schedules the High Speed ​​Downlink Shared Channel (HS-DSCH) For users, there is a definite timing relationship between HS-SCCH and HS-DSCH. After the user equipment (UE) demodulates the HS-DSCH, and feeds back the HS-DSCH reception confirmation / non-acknowledgment message (ACK / NACK) to the base station (NodeB) on the uplink high-speed shared information channel (HS-SICH), the HS - The timing relationship between the SICH and the HS-SCCH is also determined, and the HS-SICH channel not only carries A...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L1/16H04W28/10H04W28/22
Inventor 王大飞沈东栋魏立梅范晨王浩然赵渊陈迎
Owner TD TECH COMM TECH LTD
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