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A method and system for sending uplink authorization information

A technology of authorization information and sending method, which is applied in wireless communication, communication between multiple stations, electrical components, etc., to achieve the effect of solving timing problems and ensuring backward compatibility

Active Publication Date: 2016-12-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a method and system for sending uplink authorization information to solve the timing problem between uplink authorization information and uplink data transmission when relay link subframe configuration is switched

Method used

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  • A method and system for sending uplink authorization information
  • A method and system for sending uplink authorization information
  • A method and system for sending uplink authorization information

Examples

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Effect test

application example 1

[0107] Assume that the current subframe configuration switching period is 40ms, that is, subframe configuration switching occurs once every 40ms. Such as Figure 4 As shown, the subframe combination signaling corresponding to the subframe configuration before switching is the decimal number "7" or binary "00000111". It can be seen that the value of the subframe combination signaling indicates that the subframe set index used is 0, 1 ,2. Calculate the modulus of "10" for each subframe number in the downlink subframe set with indexes 0, 1, and 2 located within the last 10 ms before switching, assuming that the corresponding relationship between the set index and the uplink and downlink sets shown in Table 1 is adopted , resulting in "1", "7", "8".

[0108] The subframe combination signaling corresponding to the subframe configuration after switching is the decimal number "19" or the binary number "00010011", then it can be seen that the value of the subframe combination signal...

application example 2

[0113] Assume that the switching period of the current subframe configuration is 40ms, such as Figure 5 As shown, the subframe combination signaling corresponding to the subframe configuration before switching is decimal "7" or binary "00000111". "7", "8"; the subframe combination signaling corresponding to the subframe configuration after switching is decimal "27" or binary "00011011", and the corresponding uplink subframe number within the first 10ms after switching is modulo "10" The result is "0", "2", "7".

[0114] If the downlink subframe corresponding to the modulus "10" is "1" before the switch, if it carries the UL grant, it is used to indicate the uplink data transmission of the uplink subframe corresponding to the modulus "10" is "5" before the switch, specifically, #n The frame is #1 subframe, x is equal to 4ms;

[0115] If the downlink subframe corresponding to the mode "10" before switching is "1" carries 2 UL grants, the first UL grant is used to indicate the...

application example 3

[0119] Assume that the switching period of the current subframe configuration is 40ms, such as Figure 6 As shown, the subframe combination signaling corresponding to the subframe configuration before switching is decimal "7" or binary "00000111". "7", "8"; the subframe combination signaling corresponding to the subframe configuration after switching is decimal "7" or binary "00000111", and the corresponding uplink subframe number within the first 10ms after switching is modulo "10" The result is "1", "2".

[0120] If the downlink subframe corresponding to the modulus "10" is "1" before the switch, if it carries the UL grant, it is used to indicate the uplink data transmission of the uplink subframe corresponding to the modulus "10" is "5" before the switch, specifically, #n The frame is #1 subframe, x is equal to 4ms;

[0121] If the downlink subframe corresponding to the modulus "10" is "7" before the switch, if the UL grant is carried, it is used to indicate the uplink da...

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Abstract

The present invention discloses a method and system for sending uplink authorization information. The method includes: when the subframe configuration is switched, the downlink subframe with the subframe number n carries the uplink subframe with the subframe number m to be transmitted The uplink authorization information corresponding to the uplink data; wherein, n and m are natural numbers; the time interval x between the uplink subframe with subframe number m and the downlink subframe with subframe number n is greater than or equal to 4 milliseconds. In summary, after adopting the present invention, it can be well applied to the link from the base station to the relay node, without introducing signaling overhead, which not only ensures backward compatibility (compatible with the LTE system), but also solves the problem of relay link subframe Timing between uplink grant information and uplink data transmission during configuration handover.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and system for sending uplink authorization information. Background technique [0002] After the introduction of RN (Relay Node, relay node) in the LTE-A (Long Term Evolution Advanced, advanced long-term evolution system) system, a new link is added, such as figure 1 As shown, the corresponding terms include: the link between eNode-B (evolved Node B) and RN is called backhaul link (backhaul link or relay link), and the link between RN and UE (UserEquipment, user equipment) The link is called an access link (access link), and the link between the eNode-B and the UE is called a direct link (direct link). When using inband-relay (in-band relay), the link from eNode-B to relay and the link from relay to UE operate on the same frequency resource. Because the inband-relay transmitter will cause interference (self-interference) to its own receiver, it is impossib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04W36/06
Inventor 毕峰杨瑾梁枫袁明吴栓栓袁弋非
Owner ZTE CORP
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