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Method, user equipment and base station for transmitting or receiving data of uplink SPS service

A technology for user equipment and service data, applied in transmission systems, digital transmission systems, error prevention/detection using return channels, etc., to achieve the effect of improving the time density of transmission

Active Publication Date: 2013-11-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method for transmitting or receiving uplink SPS service data, a user equipment and a base station, so as to solve the problem of how to improve the transmission time density of the SPS service uplink data transmission in the prior art

Method used

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  • Method, user equipment and base station for transmitting or receiving data of uplink SPS service
  • Method, user equipment and base station for transmitting or receiving data of uplink SPS service
  • Method, user equipment and base station for transmitting or receiving data of uplink SPS service

Examples

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Embodiment 1

[0041] On the one hand, the embodiment of the present invention provides a method for transmitting uplink semi-persistent scheduling SPS service data, such as image 3 As shown, the method includes:

[0042] Step 301, initial transmission or retransmission of data packets using TTI bundling for uplink SPS services;

[0043] Step 302, when receiving the retransmission instruction of the data packet, retransmit the data packet, wherein, under the condition that the transmitted data is guaranteed not to collide, the size of the TTI bundling of the initially transmitted data packet and the size of the retransmitted data The size of the TTI bundling of the packet is different and / or the RTT of the initial transmission and the first retransmission is different from the RTT of the two adjacent retransmissions.

[0044] It should be noted that the retransmission indication in the embodiment of the present invention may be a NACK message, but the embodiment of the present invention is...

application example 1

[0057] In an application example of a frame structure, such as Figure 4 As shown, the initially transmitted data packet adopts the bundling of 8 TTIs, the first retransmitted data packet adopts the bundling of 4 TTIs, and the second retransmitted data packet adopts the bundling of 8 TTIs. Preferably, the RTT of the initial transmission and retransmission of the same data packet is 16, the RTT of two adjacent retransmissions is 12, and a data packet can be retransmitted up to 2 times.

[0058] Specifically, if the detection of an initially transmitted data packet fails, the NACK of the initially transmitted data packet is received, and the data packet is retransmitted, and the RTT between the first retransmitted data packet and the initially transmitted data packet is 16 TTI, that is to say, the data packet will be retransmitted for the first time after the 16th TTI after the initial transmission of the data packet. Therefore, the end time of the initial data packet and the st...

application example 2

[0061] In an application example of a frame structure, such as Figure 5As shown, the initially transmitted data packet adopts the bundling of 4 TTIs, the first retransmission adopts the bundling of 8 TTIs, and the data packet of the second retransmission adopts the bundling of 8 TTIs. Preferably, the RTT of the initial transmission and retransmission of the same data packet is 12, the RTT of two adjacent retransmissions is 32, and a data packet can be retransmitted up to 2 times.

[0062] Specifically, if the detection of an initially transmitted data packet fails, the NACK of the initially transmitted data packet is received, and the data packet is retransmitted, and the RTT between the first retransmitted data packet and the initially transmitted data packet is 12 TTI, that is to say, the data packet will be retransmitted for the first time after the 12th TTI after the initial transmission of the data packet. Therefore, in this example, the end time of the initial data pack...

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Abstract

Disclosed is a method for transmitting uplink semi-persistent scheduling SPS service data in a frequency division duplexing FDD system. The method comprises: initially transmitting or retransmitting a data packet using transmission time interval TTI bundling of an uplink SPS service; and when a retransmission indication of the data packet is received, retransmitting the data packet, wherein under the condition of ensuring that the transmission data does not collide, the size of the TTI bundling of the initially transmitted data packet is different from that of the TTI bundling of the retransmitted data packet and / or the round-trip time delay RTT of the initial transmission or the first retransmission is different from the RTT of two adjacent retransmissions. Correspondingly, also disclosed are a method, user equipment and a base station for receiving SPS service data. The present invention increases the transmission time density when SPS service uplink data is transmitted.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method for transmitting or receiving uplink Semi-Persistent Scheduling (Semi-Persistent Scheduling, SPS) service data in a Frequency Division Duplexing (FDD) system, a user equipment and a base station. Background technique [0002] The basic principle of VoIP is to send voice data over an IP network. An important service feature of the Long Term Evolution (LTE) is that all services in the circuit domain are canceled, and the concept of an all-IP network is proposed. Therefore, VoIP is one of the service types that LTE can support. [0003] Through simulation and calculation, it is found that when the physical uplink shared channel is used to transmit uplink VoIP services, the coverage is limited. In order to solve the problem of limited coverage when the physical uplink shared channel is used to transmit uplink VoIP services, the prior art adopts the following s...

Claims

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Application Information

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IPC IPC(8): H04L1/18
CPCH04L1/1887H04L1/1825H04L1/1819
Inventor 南方吴强万蕾李博
Owner HUAWEI TECH CO LTD
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