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Uplink data transmission method of high speed uplink packet access (HSUPA) system and base station

A data transmission method and base station technology, applied in electrical components, wireless communication and other directions, can solve the problems of low uplink service transmission rate, uplink interference, and low UE transmission rate of HSUPA system, and achieve the goal of improving transmission rate and throughput. Effect

Active Publication Date: 2012-07-04
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the HSUPA system, the CRRI and TRRI parameters in the uplink scheduling resources allocated to different UEs in the same cell cannot be repeated, otherwise multiple UEs use the same code channel and time slot resources, and there will be uplink interference between them
However, when multiple UEs need to upload data and send scheduling requests to NodeB at the same time, NodeB needs to allocate different CRRIs and TRRIs for these UEs, which will inevitably lead to low uplink service transmission rates of these UEs
[0006] In summary, the uplink service transmission rate of the prior art HSUPA system is relatively low

Method used

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  • Uplink data transmission method of high speed uplink packet access (HSUPA) system and base station
  • Uplink data transmission method of high speed uplink packet access (HSUPA) system and base station
  • Uplink data transmission method of high speed uplink packet access (HSUPA) system and base station

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Effect test

Embodiment 1

[0036] The first UE is located between 1-3F, the second UE is located between 7-10F, and the third UE is located between 14-17F, and all three UEs use the HSUPA technology to upload data.

[0037] In the case that the UE does not receive continuous scheduling, according to the existing protocol, if the UE needs to send data, the UE needs to send a scheduling request through the E-RUCCH, requesting the NodeB to schedule resources for uploading data, including CRRI, TRRI and PRRI.

[0038] In this case of multi-channel antennas, assuming that the first UE, the second UE, and the third UE all send scheduling requests through E-RUCCH at a certain moment, the NodeB obtains the following three detection results:

[0039] 1. The E-RUCCH signal of the first UE is detected on the 1-3F channel, that is, the scheduling request of the first UE is detected, but the scheduling requests of the other two UEs are not detected.

[0040] 2. The E-RUCCH signal of the second UE is detected on the...

Embodiment 2

[0045] The first UE is located between 1-3F, the second UE is located between 7-10F, and the third UE is located between 14-17F, and all three UEs use the HSUPA technology to upload data.

[0046] In the case of continuous scheduling of the UE, according to the existing protocol, if the UE needs to continue to send data, the UE needs to send a scheduling request to the NodeB through the E-PUCH, requesting the NodeB to schedule resources for uploading the next frame of business data , which includes CRRI, TRRI, and PRRI. Wherein, the E-PUCH also carries service data transmitted by the current frame of the UE.

[0047] In this multi-channel situation, assuming that the first UE, the second UE and the third UE are continuously scheduled and need to continue to send uplink service data at the same time, so they send a scheduling request to the NodeB at the same time, and the NodeB obtains the following three detections result:

[0048] 1. The scheduling request of the first UE i...

Embodiment 3

[0053] The first UE is between 1-3F, the second UE is between 4-6F, and the third UE is between 7-10F, and all three UEs use the HSUPA technology to upload data.

[0054] If the UE does not receive continuous scheduling, if the UE needs to send data, the UE needs to send a scheduling request through the E-RUCCH, requesting the NodeB to schedule resources for uploading data, including CRRI, TRRI and PRRI.

[0055] In this case of multi-channel antennas, assuming that the first UE, the second UE, and the third UE all send scheduling requests through E-RUCCH at a certain moment, the NodeB obtains the following three detection results:

[0056] 1. The scheduling requests of the first UE and the second UE are detected on the channel 1-3F, but the scheduling request of the third UE is not detected.

[0057] 2. The scheduling requests of the first UE, the second UE and the third UE are detected on the 4-6F channel.

[0058] 3. The scheduling requests of the second UE and the third U...

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Abstract

The invention discloses an uplink data transmission method of a high speed uplink packet access (HSUPA) system and a base station, which are used for improving the uplink service data transmission rate of the HSUPA system. The uplink data transmission method of the HSUPA system is characterized in that the base station NodeB simultaneously receives scheduling requests sent by a plurality of user terminal user equipment (UE), and determines UE without mutual uplink interference from the plurality of UE; the NodeB distributes completely same or partially same code resource indication CRRI information and time slot resource indication TRRI information for the UE without mutual uplink interference according to the scheduling requests; and the NodeB receives uplink data which is transmitted bythe UE by utilizing the CRRI information and the TRRI information distributed by the NodeB. Therefore, the invention improves the uplink throughput of a cell.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to an uplink data transmission method of a High Speed ​​Uplink Packet Access (HSUPA, High Speed ​​Uplink Packet Access) system and a base station. Background technique [0002] According to the 3GPP TD-SCDMA system-related protocols, in the HSUPA system, when the user terminal (UE) needs to upload service data, it needs to send a scheduling request to the base station (NodeB), requesting the NodeB to allocate uplink scheduling resources for the UE to transmit uplink business data. [0003] The uplink scheduling resources include allocation code resource indication (CRRI, Code Resource Related Information), power resource indication (PRRI, Power Resource Related Information) and time slot resource indication (TRRI, Timeslot Resource Related Information). Among them, PRRI occupies 5 bits (bit), and is used to indicate the ratio of each resource unit of the allocated en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/08H04W72/54
Inventor 丁国栋
Owner DATANG MOBILE COMM EQUIP CO LTD