WO2010135911A1

WO2010135911A1 - Method and device for persistently transmitting firstly-transmitted packets

Info

Publication number: WO2010135911A1
Application number: PCT/CN2010/000722
Authority: WO
Inventors: 姜大洁; 胡臻平; 崔春风; 黄宇红
Original assignee: 中国移动通信集团公司
Priority date: 2009-05-27
Filing date: 2010-05-20
Publication date: 2010-12-02
Also published as: CN101902782A; CN101902782B

Abstract

A technology for persistently transmitting firstly-transmitted packets includes determining a first repetition period of setting some sub-frames of transmitted sub-frames as blank sub-frames or Multicast Broadcast Single Frequency Network (MBSFN) sub-frames; determining a second repetition period according to the first repetition period; determining unpaired sub-frames in the second repetition period; selecting k sub-frames as reserved resource from the determined unpaired sub-frames; taking the second repetition period as a repetition transmission period, and transmitting k firstly-transmitted packets by using the selected reserved resource during the repetition transmission period. Because the unpaired sub-frames themselves are not set as blank sub-frames or MBSFN sub-frames, they can be used as reserved resource to perform the persistent transmission of the firstly-transmitted packets, so as to save downlink control signaling and simultaneously avoid the generation of collision.

Description

Method and device for continuously transmitting new packets

The present invention relates to the field of mobile communications, and in particular, to a technology for continuously transmitting new packets. Background technique

In order to save PDCCH (Physical Downlink Control Channel) signaling in 3G LTE (Long Term Evolution), a semi-persistent scheduling method is proposed. The basic idea is that the new packet of VoIP (voice over IP) voice transmission is sent every set time interval (such as 20ms), so it can pass RRC (Radio Resource Control). The signaling indicates the period of the reserved resource, and then activates the reserved time-frequency domain resource by using one PDCCH signaling, and then automatically uses the fixed-location reserved resource to transmit data every 20 ms, without using PDCCH signaling for each The new transmission packet indicates the allocated resource; after the resource allocated for the new transmission packet is indicated by one signaling, since the allocated resource of the indication is periodic, the subsequent transmission of the new transmission packet may be consecutive on the allocated resource. The transmission, without having to use signaling again to indicate the allocated resources for the subsequent transmission of the new packet, is the continuous transmission mode. In the case of transmission error or packet loss, the data transmission retransmission is required, and the transmission rule of the retransmission packet is unpredictable, so the resources occupied by the retransmission packet cannot be reserved, and dynamic scheduling, that is, transmission of the retransmission packet is required. All need to signal the resources allocated to it. This method of continuously scheduling new packets and dynamically scheduling retransmission packets is called semi-persistent scheduling, as shown in Figure 1. During the continuous scheduling of new packets, PDCCH signaling can be saved.

In order to enable the UE (User Equipment) of the LTE Release 8 to access the network of LTE Release 9 or Release 10, some subframes need to be configured as Blank subframe or MBSFN (Multicast Broadcast). Single Frequency Network (multicast broadcast single frequency network) subframe, so that in these subframes, the UE of Release 8 cannot transmit data or receive data, and the UE of Release 9 or Release 10 transmits data or receives data on these subframes. Under the LTE FDD (Frequency Division Duplex) system, on The row channel and the downlink channel each have 8 HARQ processes, numbered 0 to 7. In order to configure the blank subframe or the MBSFN subframe, the original HARQ structure change is minimal, and the subframe corresponding to some processes may be set to blank subframe or MBSFN subframe. For example, as shown in FIG. 2, the subframe corresponding to the HARQ process No. 0 can be set to blank subframe or MBSFN subframe, so that only 7 processes (processes 1 to 7) are left for transmitting data.

After the subframe corresponding to the HARQ process No. 0 is set to blank subframe or MBSFN subframe, a total of 5 subframes are set to blank subframe or MBSFN subframe in a time window of 40 ms (assuming that the new packet is transmitted every 20 ms). The 35 subframes can be received or sent by the UE of Release 8. Wherein, one subframe is sent per lms.

However, since some subframes are set to blank subframe or MBSFN subframe, collisions may occur during semi-persistent scheduling of new packets. The specific analysis is as follows: For example, as shown in FIG. 3, the base station performs semi-persistent scheduling on the user, and continuously schedules the fifth subframe as a reserved resource of the new packet. In the first 20 ms period, a new packet may be transmitted by using the fifth subframe (the corresponding HARQ process is 4); however, in the second 20 ms period, since the HARQ process corresponding to the fifth subframe is 0, It is set to blank subframe or MBSFN subframe. Therefore, the 5th subframe in the second 20ms period cannot be used to transmit a new packet, which causes the allocated reserved resource to conflict with the blank subframe or MBSFN subframe, causing scheduling. pickle. Summary of the invention

The embodiment of the invention provides a method and a device for continuously transmitting a new packet, and a method and a device for continuously receiving a new packet, which are used to solve the conflict between the reserved resource of the persistent scheduling and the blank subframe or the MBSFN subframe.

A new packet transmission method and apparatus, a new packet transmission method and apparatus, and a device for solving a conflict between a reserved resource of a persistent scheduling and a blank subframe or an MBSFN subframe.

A method for continuously transmitting a new packet is provided in the embodiment of the present invention, including: determining a first repetition period, where the first repetition period is set to an empty subframe blank subframe or a multicast broadcast single frequency network subframe in a transmission subframe The repetition period of the MBSFN subframe; determining the second weight according to the first repetition period a multi-cycle, the number of subframes transmitted in the second repetition period is a common multiple of the number of subframes transmitted in the first repetition period and the number of subframes transmitted in the generation period of the new packet; The k unpaired subframes are determined as reserved resources in the intra-transmitted subframes, and the unpaired subframes refer to subframes that are not set to blank subframe or MBSFN subframe, and are separated from the subframe by at least one generation period. The subframe is set as a subframe of a blank subframe or an MBSFN subframe; the k is a multiple of the number of subframes transmitted in the second repetition period compared to the number of subframes transmitted in the generation period of the new transmission packet; The second repetition period is a repeated transmission period, and k new packets are transmitted with the selected reserved resources in one repeated transmission period.

A method for continuously transmitting a new packet is provided in the embodiment of the present invention, including: determining a first repetition period, where the first repetition period is set to an empty subframe blank subframe or a multicast broadcast single frequency network subframe in a transmission subframe a repetition period of the MBSFN subframe; determining a second repetition period according to the first repetition period; the number of subframes transmitted in the second repetition period is the number of subframes transmitted in the first repetition period and the generation period of the new transmission packet a common multiple of the number of transmitted subframes; the subframes transmitted in each generation period are sequentially sequenced; and the subframes set to be blank subframes or MBSFN subframes in the subframes transmitted in the second repetition period are determined. No.; selecting a sequence number other than the determined sequence number from each subframe number of a generation period, to select a subframe corresponding to the sequence number as a reservation for transmitting a new packet in each generation period a resource; continuously transmitting a new packet according to the reserved resource.

A new packet transmission method according to an embodiment of the present invention includes: during a continuous transmission process of a new transmission packet, if it is determined that a subframe currently used to transmit a new transmission packet is set to blank subframe or MBSFN subframe, Stop the continuous transmission of the new packet, and then dynamically schedule the new packet.

A method for continuously receiving a new transmission packet according to an embodiment of the present invention includes: determining, according to a set period of a reserved resource, a time at which the transmitting end sends a new transmission packet after activating the reserved resource, and determining the sending The new packet is received at the moment when the new packet is sent.

A method for receiving a new packet according to the embodiment of the present invention includes: during a continuous receiving process of a new packet, if it is determined that a subframe that is currently used to receive a new packet is not set to a blank subframe or an MBSFN subframe, Then receive the new packet. An apparatus for continuously transmitting a new packet, which is provided by the embodiment of the present invention, includes: a first repetition period determining module, configured to determine a first repetition period, where the first repetition period is set to an empty subframe blank subframe in a transmission subframe Or a repetition period of the broadcast single-frequency network subframe MBSFN subframe; a second repetition period determining module, configured to determine a second repetition period in a first repetition period, where the number of subframes transmitted in the second repetition period is a common multiple of the number of subframes transmitted in a repetition period and the number of subframes transmitted in a generation period of the new transmission packet; a reserved resource determining module, configured to determine k non-subframes from the subframes transmitted in the second repetition period The paired subframe is used as a reserved resource, and the unpaired subframe refers to a subframe that is not set to blank subframe or MBSFN subframe, and the subframe that is separated from the subframe by at least one generation period is set to blank subframe or MBSFN a sub-frame of the subframe; the k is a multiple of the number of subframes transmitted in the second repetition period compared to the number of subframes transmitted in the generation period; the new transmission continuous transmission module And transmitting, by using the second repetition period as a repeated transmission period, the k new transmission packets are transmitted in the selected transmission resource in a repeated transmission period.

An apparatus for continuously transmitting a new packet, which is provided by the embodiment of the present invention, includes: a first repetition period determining module, configured to determine a first repetition period, where the first repetition period is set to an empty subframe blank subframe in a transmission subframe Or a repetition period of the broadcast single-frequency network subframe MBSFN subframe; a second repetition period determining module, configured to determine a second repetition period according to the first repetition period; and the number of subframes transmitted in the second repetition period is a number of subframes transmitted in a repetition period and a common multiple of the number of subframes transmitted in a generation period of the new transmission packet; the subframes transmitted in each generation period are sequentially sequenced; a sequence number determining module, configured to determine a sequence number of a subframe set as a blank subframe or an MBSFN subframe in the subframe that is transmitted in the second repetition period; a reserved resource determining module, configured to select, according to the sequence number, from each subframe number of a generation period a sequence number other than the sequence number determined by the module, and the subframe corresponding to the selected sequence number is used as a new packet for each generation period. Reserved resources; new transmission packets transmitted continuously module, according to the reservation resource sustainable send new packet transmission.

A new packet transmission apparatus according to an embodiment of the present invention includes: a conflict determination module, configured to: in a continuous transmission process of a new transmission packet, determine that a subframe that is currently used to transmit a new transmission packet is set to blank When the subframe or MBSFN subframe, the pause notification is sent; the new packet continues to transmit the mode. And a block, configured to stop sending the new packet according to the pause notification, and send a dynamic scheduling notification, where the dynamic scheduling module is configured to dynamically schedule the new packet according to the dynamic scheduling notification.

An apparatus for continuously receiving a new packet is provided in the embodiment of the present invention, including: a reserved resource determining module, configured to set a period of reserved resources, and after activating the reserved resource, determining that the sending end sends a new packet The new transmission packet continuous receiving module is configured to continuously receive the new transmission packet according to the time determined by the reserved resource determining module.

A new packet receiving apparatus according to an embodiment of the present invention includes: a conflict determining module, configured to determine, in a continuous receiving process of a new transport packet, that a subframe that is currently used to receive a new transport packet is not set to blank A subframe or MBSFN subframe; a new packet continuous receiving module, configured to receive the new packet when the collision determining module determines that a subframe that is currently used to receive a new packet is not set to blank subframe or MBSFN subframe.

In the embodiment of the present invention, since the subframe to be used for transmitting the new packet is determined to be blank subframe or MBSFN subframe during the continuous transmission of the new packet, the persistent scheduling of the new packet is stopped, and the method is adopted instead. The dynamic scheduling mode sends the new transmission packet, thereby solving the problem that the reserved resource of the new transmission packet conflicts with the blank subframe or the MBSFN subframe.

In the embodiment of the present invention, since a subframe that is not set to a blank subframe or an MBSFN subframe is continuously transmitted as a reserved resource, a new packet is continuously transmitted. Therefore, when a new packet is continuously transmitted, a reserved resource and a blank subframe or an MBSFN are avoided. In the case of the collision of the subframes, the embodiment of the present invention solves the problem that the unpaired subframe itself is not set to blank subframe or MBSFN subframe, and therefore can be used as a reserved resource without conflicting with the blank subframe or the MBSFN subframe; And the use of reserved resources for continuous transmission of new packets can save downlink control signaling. DRAWINGS

FIG. 1 is a schematic diagram of persistent scheduling of a new packet in the prior art; FIG.

2 is a prior art network that accesses an LTE Release 8 UE to an LTE Release 10 network. When configuring certain frames as a schematic diagram of a Blank subframe or an MBSFN subframe;

3 is a schematic diagram of a conflict between a reserved resource of the prior art and a subframe set to a blank subframe or an MBSFN subframe;

4 is a schematic flowchart of a method for continuously transmitting a new packet according to an embodiment of the present invention; FIG. 5a is a schematic flowchart of a method for continuously transmitting a new packet according to an embodiment of the present invention; Schematic diagram of a reserved resource allocation for continuously transmitting a new packet; FIG. 5c is a schematic diagram of another resource allocation for continuously transmitting a new packet according to an embodiment of the present invention; FIG. 6 is a schematic diagram of transmitting a new packet according to an embodiment of the present invention; Block diagram of the internal structure of the device;

FIG. 7 is a block diagram showing the internal structure of a device for continuously transmitting a new packet according to an embodiment of the present invention; FIG. 8 is a block diagram showing another internal structure of a device for continuously transmitting a new packet according to an embodiment of the present invention; A block diagram of the internal structure of a new packet receiving device;

FIG. 10 is a block diagram showing the internal structure of an apparatus for continuously receiving a new packet according to an embodiment of the present invention. detailed description

The embodiment of the invention provides three specific solutions for solving the above conflicts.

A specific method for resolving the foregoing conflicts is: when the base station sends a new packet to the mobile terminal in a persistent scheduling manner, the base station indicates a set period of the reserved resource by using RRC signaling; and activates the reserved resource by using PDCCH signaling. Then, the subframe transmitted after the PDCCH signaling and the subframe indicated by the PDCCH signaling and the subframe with the indicated subframe interval setting period are continuously transmitted. If, during the continuous transmission of the new transmission packet, it is determined that the subframe currently used to transmit the new transmission packet is set to blank subframe or MBSFN subframe, the persistent scheduling of the new transmission packet is stopped, and the new transmission is dynamically scheduled. The packet solves the problem that the reserved resource of the new packet conflicts with the blank subframe or the MBSFN subframe. If the persistent scheduling is performed subsequently, the PDCCH signaling activation resource is again sent.

Similarly, when the mobile terminal sends a new packet to the base station in a persistent scheduling manner, the network side first indicates the set period of the reserved resource by using high layer signaling or other signaling (such as RRC signaling), and then passes the PDCCH signal. After the reserved resource is activated, the mobile terminal refers to the PDCCH The illustrated subframe and the subframe with the indicated subframe interval setting period perform continuous transmission of the new packet. If the subframe in which the new packet is to be sent is set to be blank subframe or MBSFN subframe during the continuous transmission of the new packet, the continuous transmission of the new packet is stopped, and the network side dynamic scheduling notification is awaited. The mobile terminal transmits the new packet according to the notification on the network side.

The other two specific methods for resolving the above conflicts are: analyzing the conflicting subframes shown in Figure 3, and finding that the resource interval allocated by semi-persistent scheduling is 20 ms, resulting in 5 of the 35 subframes being set to blank subframe or The subframes corresponding to the subframes of the MBSFN subframe cannot be used for semi-persistent scheduling, which are the npaired subframes in FIG. That is, a subframe that is an integer multiple of 20ms from the blank subframe or MBSFN subframe subframe will collide and cannot be used for persistent scheduling of new packets.

The analysis of these unpaired subframes reveals that these unpaired subframes can be used to transmit new packets. However, after several 20ms periods, it is possible to encounter conflicts caused by blank subframes or MBSFN subframes. The reserved resource transmits a new packet.

For the above analysis, a new packet transmission scheduling method provided by the embodiment of the present invention, as shown in FIG. 4, includes the following steps:

S401. Determine a repetition period (ie, a first repetition period) set to a blank subframe or an MBSFN subframe.

4 i殳 service packet generation period is T, that is, a service packet is generated every time T (for example, a new transmission packet of VoIP service is generated every 20 ms); in the period T, the support can transmit N subframes, each The subframes in the period T are numbered 1 to N (N is a natural number greater than 1) in the order of transmission. The network side sets the subframes to be blank subframes or MBSFN subframes according to specific conditions. Generally, the blank subframe or MBSFN subframe set on the network side has a repetition period, for example, the repetition period is 2χ Τ (if the Τ is 20 ms, the repetition period is For 40ms). The repetition period to be set as blank subframe or MBSFN subframe here is referred to as a first repetition period. That is, the sequence number set to blank subframe or MBSFN subframe in the next first repetition period is set to blank subframe or in the previous first repetition period. The serial number of the MBSFN subframe corresponds.

For example, the first repetition period set on the network side may be equal to T, and the subframes with the sequence numbers 5, 8, and 13 in the period 被 are set to blank subframe or MBSFN subframe, then, in the next period T, the sequence number is 5, 8, The subframe of 13 will also be set to blank subframe or MBSFN subframe.

Or as shown in FIG. 3, the subframes numbered 1, 9, and 17 in the first period T are set to blank subframe or MBSFN subframe, and the subframes numbered 5 and 13 are set in the second period T. The number of blank subframes or MBSFN subframes in the third period will be the same as the first period, and the number of the blank subframes or MBSFN subframes in the fourth period will be repeated with the second period. ...

Thereby, it can be determined that the first repetition period set on the network side is equal to 2 χ Τ. The subframe numbers set to blank subframe or MBSFN subframe in each first repetition period are 1, 5, 9, 13, and 17.

5402. Determine a second repetition period according to the first repetition period.

The first repetition period can determine the second repetition period, the number of subframes transmitted in the second repetition period is an integer multiple of the number of subframes transmitted in the first repetition period, and the child transmitted in the second repetition period The number of frames is an integer multiple of the number of subframes transmitted in the generation period T of the new transmission packet. That is to say, the number of subframes transmitted in the second repetition period is a common multiple of the number of subframes transmitted in the first repetition period and the number of subframes transmitted in the generation period of the new packet. Assuming that the determined first repetition period is 2T, it may be determined that the second repetition period is 2T, or 4Τ, etc.; assuming that the determined first repetition period is Τ/2, it may be determined that the second repetition period is Τ, or 2Τ, etc. Wait.

5403. Determine a subframe sequence number set to blank subframe or MBSFN subframe in the second repetition period.

For example, in Fig. 3, the subframe numbers set to Wank subframe or MBSFN subframe in the subframe transmitted in the second repetition period (40 ms) are 1, 5, 9, 13, and 17. The subframe corresponding to the sequence number is used as a reserved resource.

Then, it is possible to utilize the corresponding to the sequence number determined in the above step S403 in each period T. The subframe continues to transmit new packets as a reserved resource, and does not conflict with subframes set to blank subframe or MBSFN subframe. That is, a sequence number other than the sequence number determined in the above step S403 is selected from each of the subframe numbers in the period T, for example, the sequence number is 1, 5, and can be divided from one cycle T (20 ms) shown in FIG. Select one of the sequence numbers other than 9, 13, and 17. For example, if the subframe with the sequence number of 2, 3, 4, or 6 continues to transmit the new packet as the reserved resource, it will not appear and is set to blank subframe or MBSFN subframe. The case where the subframes collide.

S405. Perform continuous transmission of the new transmission packet according to the allocated reserved resource.

For example, after the RRC signaling indicates that the period of the reserved resource is 20 ms and the sequence number of the reserved resource, the reserved resource determined in the foregoing step S402 is activated by using the PDCCH signaling, that is, the new packet is continuously transmitted on the reserved resource. .

For the above analysis, another new packet scheduling method provided by the embodiment of the present invention, as shown in FIG. 5a, includes the following steps:

S501. Determine a repetition period (ie, a first repetition period) set as a blank subframe or an MBSFN subframe in the transmission subframe.

It is assumed that the generation period of the service packet is T, that is, a service packet is generated every time ( (for example, a new transmission packet of the VoIP service is generated every 20 ms); in the period T, it is assumed that N subframes can be transmitted, and each period T The inner subframes are numbered 1 to N (N is a natural number greater than 1) in the order of transmission.

As shown in FIG. 3, the network side sets the subframes numbered 1, 9, and 17 in the first period T to be blank subframe or MBSFN subframe, and the second period T is numbered 5 and 13. The subframe is set to blank subframe or MBSFN subframe; the number set to blank subframe or MBSFN subframe in the third period will be repeated with the first period, and the number set to blank subframe or MBSFN subframe in the fourth period will be the same Repeat two cycles...

Then, it can be determined that the first repetition period set on the network side is equal to 2χ. The subframe numbers set to blank subframe or MBSFN subframe in each first repetition period are 1, 5, 9, 13, and 17.

S502. Determine a second repetition period according to the first repetition period. The second repetition period may be determined according to the first repetition period, the number of subframes transmitted in the second repetition period is an integer multiple of the number of subframes transmitted in the first repetition period, and the subframes transmitted in the second repetition period are The number is an integer multiple of the number of subframes transmitted in the generation period T of the new transmission packet. That is to say, the number of subframes transmitted in the second repetition period is a common multiple of the number of subframes transmitted in the first repetition period and the number of subframes transmitted in the generation period of the new packet. Assuming that the determined first repetition period is 2T, it may be determined that the second repetition period is 2Τ, or 4Τ, etc.; assuming that the determined first repetition period is 172, it may be determined that the second repetition period is Τ, or 2Τ, and the like.

S503. Determine k unpaired subframes from the subframes transmitted in the second repetition period. unpaired subframe

The k unpaired subframes in the subframes transmitted in the second repetition period may be determined according to the blank subframe or the MBSFN subframe set in the second repetition period, where k=the subframes transmitted in the second repetition period ^ t/period T The number of subframes transmitted internally, that is, k is a multiple of the number of subframes transmitted in the second repetition period compared to the number of subframes transmitted in the generation period T. For example, as shown in FIG. 3, the subframes numbered 1, 5, 9, 13, and 17 may collide with the blank subframe or the MBSFN subframe in the current period T, or after the m periods T with the blank subframe or the MBSFN subframe. Conflict; where m is a natural number greater than or equal to 1. A subframe that collides with a blank subframe or an MB SFN subframe after m periods T is called an unpaired subframe. For example, the subframes numbered 5 and 13 in the first period T in FIG. 3 will collide with the subframe set to blank subframe or MBSFN subframe in the second period T (ie, after one period T); The subframes numbered 1, 9, and 17 in the two periods T will collide with the subframe set to blank subframe or MBSFN subframe in the third period T (i.e., after one period T). Therefore, the subframes numbered 5 and 13 in the first cycle and the subframes numbered 1, 9, and 17 in the second cycle are all unpaired subframes. The unpaired subframes are not in the period T of the subframe. The subframe set to blank subframe or MBSFN subframe and separated by m periods (ie, at least one period apart) T is set to blank subframe or MBSFN subframe. Therefore, unpaired subframes can actually be used to transmit new packets.

5504. Use the unpaired subframe to allocate reserved resources. The k unpaired subframes selected from the unpaired subframes in the second repetition period are used as reserved resources. The allocation of reserved resources is specifically as follows:

For example, in the case shown in FIG. 3, the first repetition period is 40 ms, and the number of subframes transmitted in the first repetition period is 40; the period T=20 ms, and the number of subframes transmitted in the period T is 20, then it can be determined. The second repetition period is 40 ms and k=2. In the second repetition period, the sequence numbers of the unpaired subframes are determined as follows: 5, 13, 1, 9, 17; two of the sequence numbers are selected, such as 5 and 1, or 5 and 13, or 13 and 9, etc. Keep resources.

Then, the reserved resources are allocated as follows: Assuming that the unpaired subframe with sequence numbers 5 and 1 is selected as the reserved resource, the second repetition period is used as the repeated transmission period, and in the repeated transmission period, the selected sequence number is 5 and The unpaired subframe of 1 is reserved for 2 new packets. That is, in the 40 ms subframe, two untransmitted subframes with sequence numbers 5 and 1 are respectively transmitted two new packets, and then, in the subsequent 40 ms, the unpaired subframes with sequence numbers 5 and 1 are again used to transmit two new packets. , so repeated... In this way, although the interval between the transmission time of each new packet and its adjacent new packet is not 20 ms, from the macro perspective, the average transmission interval of the new packet is still 20 ms, thereby ensuring the service data. The timely delivery of the package.

In addition, the pairing method can also be used to allocate reserved resources, so that the time interval between adjacent reserved resources is more reasonable (the detailed method will be introduced later).

S505: Perform continuous transmission of the new transmission packet according to the allocated reserved resource.

Specifically, the network side first indicates the pairing condition of the reserved resources by using high layer signaling or other signaling (for example, the pairing case includes the second repetition period and the sequence number of the reserved resource in the second repetition period), and then is determined by using PDCCH signaling activation. Reserve resources to continuously transmit new packets on the reserved resources identified above.

The receiving end of the reserved resource and the indication of the PDCCH can determine the moments at which the transmitting end transmits the newly transmitted packet, so that the receiving end receives the new packet at the corresponding moment.

After the unpaired subframe is allocated as the reserved resource for the UE of the first type (such as the UE of the LTE Release 8), the remaining subframes (including the blank subframe or the MBSFN subframe) may be used as the UE of the second type. (LTE Release 8 or later) UE: reserved resources allocated by UE of LTE Release 9 or UE of LTE Release 10. The method for allocating the reserved resources to the UEs of the second type by using other subframes may be the same as the method of the prior art, or may refer to the method of the embodiment of the present invention. That is, k subframes are selected from the second repetition period as reserved resources of the UE of the second type, and the k subframes are other than the reserved resources allocated to the UE of the first type in the second repetition period. Sub-frame; Thereafter, the second repetition period may be a repeated transmission period, and in the repeated transmission period, k new transmission packets are transmitted to the second-type version of the UE by using the reserved resources of the second-type version of the UE.

In the foregoing step S504, if the pairing method is used to allocate reserved resources, the time interval between adjacent reserved resources can be made more reasonable:

Assume that the generation period of the service packet is T=20ms, the number of HARQ processes is 8, and the second repetition period 2 χ Τ (ie 40ms) is the repeated transmission period, and the unpaired subframe used as the reserved resource in a repeated transmission period is determined:

Assuming that the number of unpaired subframes in an repeated transmission period is an odd number M (as shown in Fig. 5b), an unpaired subframe is first excluded, and then the remaining M-1 unpaired subframes are divided into two groups in chronological order. Each unpaired subframe in the two groups is located after all unpaired subframes in the first group, and the number of unpaired subframes in the two groups is the same; the unpaired subframes in each group are numbered sequentially in chronological order; two unpaired numbers with the same number in the two groups are selected. The subframe is reserved. After removing an unpaired subframe, the first group has (Ml)/2 unpaired subframes, which are numbered 1, 2...(Μ-1)/2; the second group also has (Ml)/2 unpaired subframes. And number them as 1, 2...(Μ-1)/2; then select two unpaired subframes with the same number in both groups as reserved resources. Thus unpaired subframes that were previously excluded cannot be allocated as reserved resources, which can be allocated through dynamic scheduling.

Suppose that the number of unpaired subframes in an iterative transmission cycle is an even number P (as shown in Figure 5c), and these unpaired subframes are divided into two groups in chronological order, and each unpaired subframe in the second group is located in the first group. After unpaired subframe, and the number of unpaired subframes in the two groups is the same; the unpaired subframes in each group are numbered sequentially in chronological order. For example, each group has P/2 unpaired subframes, which are numbered 1, 2, ... /2; Two unpaired subframes with the same number in the two groups are selected as reserved resources.

Since the above-mentioned pairing method is used to allocate reserved resources, the time interval between adjacent reserved resources can be made as close as possible to 20 ms, which is more reasonable.

In fact, the methods shown in FIG. 4 and FIG. 5 can be used in combination: when step S402 is performed, if the subframe corresponding to the sequence number determined in step S401 cannot be allocated as a reserved resource, The reserved resources can be allocated by using the unpaired subframe as shown in FIG. 5. The mobile terminal transmits the downlink data, and may also apply the case where the mobile terminal on the terminal side transmits the foregoing data to the base station; it may be applied to the FDD (Frequency Division Duplex) system or the TDD (Time Division Duplex). Time division duplex) system. The number of HARQ processes mentioned above may be 8 or other natural numbers, such as 10.

It will be understood by those skilled in the art that although the above description uses a sequential description of the steps of the method for ease of understanding, it should be noted that the order of the above steps is not strictly limited.

A new packet transmission apparatus corresponding to the first method described above has an internal structural block diagram as shown in FIG. 6, and includes a conflict determination module 601, a new packet continuous transmission module 602, and a dynamic scheduling module 603.

The conflict determination module 601 is configured to send a pause notification when the subframe that is currently used to send the new transport packet is set to blank subframe or MBSFN subframe during the continuous transmission of the new transport packet;

The new packet continuous transmission module 602 is configured to stop the transmission of the new packet according to the pause notification sent by the conflict determination module 601, and send a dynamic scheduling notification;

The dynamic scheduling module 603 is configured to dynamically schedule the new packet according to the dynamic scheduling notification sent by the new packet persistent transmission module 602.

A device for continuously transmitting a new packet corresponding to the method shown in FIG. 4 above is configured as shown in FIG. 7 , and includes: a first repetition period determining module 701, a second repetition period determining module 702, and a serial number. The determining module 703, the reserved resource determining module 704, and the new packet passing transmission module 705.

The first repetition period determining module 701 is configured to determine a first repetition period, where the first repetition period A repetition period set to be an empty subframe blank subframe or a multicast broadcast single frequency network subframe MBSFN subframe in the transmission subframe.

The second repetition period determining module 702 is configured to: determine a second repetition period according to the first repetition period; the number of subframes transmitted in the second repetition period is the number of subframes transmitted in the first repetition period, and the new transmission packet A common multiple of the number of subframes transmitted during the generation period; the subframes transmitted in each generation period are sequentially numbered.

The sequence number determining module 703 is configured to determine a sequence number of a subframe set as a blank subframe or an MBSFN subframe in the subframe transmitted in the second repetition period.

The reserved resource determining module 704 is configured to select, from each subframe number of a generation period, a sequence number other than the sequence number determined by the sequence number determining module, to select a subframe corresponding to the sequence number as each of the generation periods. Reserved resource for transmitting new packets.

The new packet continuous transmission module 705 is configured to continuously transmit the new packet according to the reserved resource.

A device for continuously transmitting a new packet corresponding to the method shown in FIG. 5 above is configured as shown in FIG. 8 , and includes: a first repetition period determining module 801, a second repetition period determining module 802, and a pre- The resource retention determination module 803 and the new transmission packet continuity transmission module 804.

The first repetition period determining module 801 is configured to determine a first repetition period, where the first repetition period is a repetition period set in the transmission subframe as an empty subframe blank subframe or a multicast broadcast single frequency network subframe MBSFN subframe.

The second repetition period determining module 802 is configured to determine a second repetition period according to the first repetition period, where the number of subframes transmitted in the second repetition period is the number of subframes transmitted in the first repetition period and the new transmission A common multiple of the number of subframes transmitted during the packet generation period.

The reserved resource determining module 803 is configured to determine k unpaired subframes as reserved resources from the subframes transmitted in the second repetition period, where the unpaired subframes are not set to blank subframe or MBSFN subframe. a subframe, and a subframe that is separated from the subframe by at least one generation period is set as a subframe of a blank subframe or an MBSFN subframe; the k is a number of subframes transmitted in the second repetition period compared to the transmission in the generation period A multiple of the number of sub-frames.

The new packet continuous transmission module 804 is configured to use the second repetition period as a repeated transmission period, in one During the repeated transmission cycle, k new packets are transmitted with the selected reserved resources.

The reserved resource determining module 803 is specifically configured to: if it is determined that the number of unpaired subframes determined in the subframe transmitted in the second repetition period is an odd number, first excluding one of the unpaired subframes, and then leaving the remaining The unpaired subframes are divided into two groups according to chronological order; wherein each unpaired subframe in the second group is located after all unpaired subframes in the first group, and the number of unpaired subframes in the two groups is the same; The unpaired subframes in each group are numbered sequentially in chronological order, and two unpaired subframes with the same number in the two groups are selected as reserved resources; if the unpaired determined in the subframe transmitted in the second repetition period is determined If the number of subframes is even, the unpaired subframes are divided into two groups according to chronological order; wherein each unpaired subframe in the second group is located after all unpaired subframes in the first group, and two The number of unpaired subframes of the group is the same; and the unpaired subframes in each group are numbered in chronological order, and two unpaired subframes with the same number in the two groups are selected as reserved resources.

The reserved resource allocated by the foregoing reserved resource determining module 803 is specifically reserved resources allocated to the user equipment of the first type version (such as the user equipment of the long-term evolution version LTE Release 8); and the reserved resource determining module 803 is further used to Selecting k subframes in the first subframe in the second repetition period as a reserved resource of the second type version user equipment (such as the user equipment of the LTE Release 8 or higher version); the first subframe refers to a subframe other than the reserved resource allocated to the user equipment of the first type version;

The new packet continuous transmission module 804 is further configured to use the second repetition period as a repeated transmission period, and transmit the new packet to the second type version user equipment by using the reserved resource of the second type version user equipment in one repeated transmission period. .

The apparatus shown in Figs. 6, 7, and 8 above may be located in the base station on the network side or in the mobile terminal on the terminal side.

A new packet transmission apparatus corresponding to the first method described above has an internal structural block diagram as shown in FIG. 9, and includes a collision determination module 901 and a new packet continuous reception module 902, where:

The conflict determination module 901 is configured to determine, according to the configuration of the semi-persistent scheduling, a subframe that is currently used to receive the new transport packet during the continuous receiving process of the new transport packet, and determine that the current transport packet is to be used for receiving the new transport packet. The subframe is not set to blank subframe or MBSFN subframe; The new packet continuous receiving module 902 is configured to receive the new packet when the collision determining module determines that the subframe that is currently used to receive the new packet is not set to blank subframe or MBSFN subframe.

Preferably, the new packet receiving apparatus in FIG. 9 further includes a dynamic scheduling receiving module 903. The conflict determining module 901 is further configured to: during the continuous receiving of the new packet, determine that it is currently used to receive the new transmission. When the subframe of the packet is set to blank subframe or MBSFN subframe, a pause notification is sent;

The dynamic scheduling receiving module 903 is configured to stop receiving the new packet according to the pause notification, and instead receive the new packet according to the dynamic scheduling.

An apparatus for continuously receiving a new packet, corresponding to the method shown in FIG. 4 and FIG. 5 above, has an internal structural block diagram as shown in FIG. 10, including a reserved resource determining module 101 and a new packet continuous receiving module 102. among them:

The reserved resource determining module 101 is configured to determine, according to a set period of the reserved resource, a time at which the sending end sends a new packet after the reserved resource is activated;

The new packet continuous receiving module 102 is configured to continuously receive the new packet according to the time determined by the reserved resource determining module 101.

In the embodiment of the present invention, since the subframe that is currently used to transmit the new packet is determined to be blank subframe or MBSFN subframe during the continuous transmission of the new packet, the persistent scheduling of the new packet is stopped, and the method is adopted instead. The dynamic scheduling mode sends the new transmission packet, thereby solving the problem that the reserved resource of the new transmission packet conflicts with the blank subframe or the MBSFN subframe.

In the embodiment of the present invention, since a subframe that is not set to a blank subframe or an MBSFN subframe is continuously transmitted as a reserved resource, a new packet is continuously transmitted. Therefore, when a new packet is continuously transmitted, a reserved resource and a blank subframe or an MBSFN are avoided. In the case of a collision of the subframes, the problem that the reserved resources of the new transmission packet collide with the blank subframe or the MBSFN subframe is solved.

In the embodiment of the present invention, since the unpaired subframe itself is not set as a blank subframe or an MBSFN subframe, it can be used as a reserved resource without conflicting with the blank subframe or the MBSFN subframe; and the reserved resource is used for the new packet transmission. Continuous transmission can save downlink control signaling. A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, such as: ROM/RAM, Disk, CD, etc.

It will also be understood that the device structure shown in the figures or embodiments is merely illustrative and represents a logical structure. The modules displayed as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

Rights request

A method for continuously transmitting a new packet, which is characterized by comprising:

Determining a first repetition period, where the first repetition period is a repetition period set in the transmission subframe as an empty subframe blank subframe or a multicast broadcast single frequency network subframe MBSFN subframe;

Determining, according to the first repetition period, a second repetition period, where the number of subframes transmitted in the second repetition period is the number of subframes transmitted in the first repetition period and the number of subframes transmitted in a generation period of the new transmission packet Common multiple

Determining k unpaired subframes as reserved resources from the subframes transmitted in the second repetition period, where the unpaired subframes refer to subframes that are not set to blank subframe or MBSFN subframe, and the subframe The subframes separated by at least one generation period are set as subframes of blank subframe or MBSFN subframe; the k is the number of subframes transmitted in the second repetition period compared to the subframes transmitted in the generation period of the new transmission packet a multiple of the number;

The second repetition period is a repeated transmission period, and k new packets are transmitted in the selected transmission resource in a repeated transmission period.

The method according to claim 1, wherein the determined first repetition period is 40 ms, and the generation period is 20 ms;

The second repetition period is determined to be 40 ms, and the k is equal to 2.

The method according to claim 1 or 2, wherein the k unpaired subframes are determined from the subframes transmitted in the second repetition period as reserved resources, specifically:

If the number of unpaired subframes determined in the subframe transmitted in the second repetition period is an odd number M, then the M-1 unpaired subframes are divided into two groups in time sequence; wherein, in the second group Each unpaired subframe is located after all unpaired subframes in the first group, and the number of unpaired subframes of the two groups is the same;

The unpaired subframes in each group are numbered sequentially in chronological order, and two unpaired subframes with the same number in the two groups are selected as reserved resources.

4. The method according to claim 1 or 2, wherein said from the second repetition period The k unpaired subframes are determined as reserved resources in the transmitted subframe, which are specifically:

If the number of unpaired subframes determined in the subframe transmitted in the second repetition period is an even number, the unpaired subframes are divided into two groups according to chronological order; wherein each non-matching sub-group in the second group The frames are all located after all unpaired subframes in the first group, and the number of unpaired subframes in the two groups is the same; the unpaired subframes in each group are numbered sequentially in chronological order, and two numbers with the same number in the two groups are selected. Unpaired subframes are reserved resources.

The method according to claim 1 or 2, wherein the reserved resource is specifically a reserved resource allocated to the user equipment of the first type version;

After selecting the k subframes as the reserved resources from the determined unpaired subframes, the method further includes: selecting k subframes from the first subframe in the second repetition period as a reservation of the second type version user equipment. The first subframe refers to a subframe other than the reserved resource allocated to the user equipment of the first type version;

The second repetition period is a repeated transmission period, and the new transmission packet is transmitted to the second type version user equipment by using the reserved resource of the second type version user equipment in one repeated transmission period.

6. A method for continuously transmitting a new packet, characterized in that it comprises:

Determining a second repetition period according to the first repetition period; the number of subframes transmitted in the second repetition period is the number of subframes transmitted in the first repetition period and the number of subframes transmitted in the generation period of the new transmission packet a common multiple; the subframes transmitted in each generation period are sequentially numbered;

Determining a sequence number of a subframe set as a blank subframe or an MBSFN subframe in the subframe transmitted in the second repetition period;

Selecting a reserved resource other than the determined sequence number from each subframe number of a generation period;

A new packet is continuously transmitted according to the reserved resource.

7. A new packet transmission method, characterized in that: In the continuous transmission process of the new transmission packet, if it is determined that the subframe currently used to transmit the new transmission packet is set to blank subframe or MBSFN subframe, the continuous transmission of the new transmission packet is stopped, and the new scheduling is dynamically scheduled. Pass the package.

8. A method for continuously receiving a new packet, which is characterized by comprising:

According to the set period of the reserved resource, after the reserved resource is activated, the time at which the sending end sends the new packet is determined, and

A new packet is received at the time when the determined sender transmits a new packet.

9. A new packet receiving method, characterized in that:

During the continuous reception of the new transport packet, if it is determined that the subframe currently used to receive the new transport packet is not set to blank subframe or MBSFN subframe, the new transport packet is received.

The new packet receiving method according to claim 9, comprising: in the continuous receiving process of the new packet, if it is determined that the subframe currently to be used for receiving the new packet is set to blank subframe Or MBSFN subframe, the continuous reception of the new transmission packet is stopped, and the new transmission packet is received according to the dynamic scheduling.

11. A device for continuously transmitting a new packet, characterized by comprising:

a first repetition period determining module, configured to determine a first repetition period, where the first repetition period is a repetition period set to an empty subframe blank subframe or a multicast broadcast single frequency network subframe MBSFN subframe in the transmission subframe;

a second repetition period determining module, configured to determine a second repetition period according to the first repetition period, where the number of subframes transmitted in the second repetition period is the number of subframes transmitted in the first repetition period and the new transmission a common multiple of the number of subframes transmitted during the generation period of the packet;

a reserved resource determining module, configured to determine k unpaired subframes as reserved resources from the subframes transmitted in the second repetition period, where the unpaired subframes are not set to blank subframe or MBSFN subframe a subframe, and a subframe that is separated from the subframe by at least one generation period is set as a subframe of a blank subframe or an MBSFN subframe; the k is a number of subframes transmitted in the second repetition period compared to the transmission in the generation period a multiple of the number of sub-frames;

The new transmission packet is continuously transmitted, and is used to repeat the transmission cycle with the second repetition period, in one heavy During the complex transmission period, k new packets are transmitted with the selected reserved resources.

12. Apparatus according to claim 11 wherein:

The reserved resource determining module is specifically configured to: if it is determined that the number of unpaired subframes determined in the subframe transmitted in the second repetition period is an odd number M, then the M-1 unpaired subframes are chronologically ordered Divided into two groups; wherein, each unpaired subframe in the second group is located after all unpaired subframes in the first group, and the number of unpaired subframes in the two groups is the same; and the unpaired in each group The subframes are sequentially numbered in chronological order, and two unpaired subframes with the same number in the two groups are selected as reserved resources; if it is determined that the number of unpaired subframes determined in the subframe transmitted in the second repetition period is even Then, the unpaired subframes are divided into two groups according to chronological order; wherein each unpaired subframe in the second group is located after all unpaired subframes in the first group, and the unpaired subframes of the two groups are The numbers are the same; and the unpaired subframes in each group are numbered sequentially in chronological order, and two unpaired subframes with the same number in the two groups are selected as reserved resources.

The device according to claim 11 or 12, wherein the reserved resource is specifically a reserved resource allocated to the user equipment of the first type version;

The reserved resource determining module is further configured to select k subframes from the first subframe in the second repetition period as reserved resources of the second type version user equipment; the first subframe refers to a subframe other than the reserved resource allocated to the user equipment of the first type version;

The new transport packet persistent transmission module is further configured to transmit the new transport packet to the second type version user equipment by using the reserved resource of the second type of user equipment in a repeated transmission period with the second repetition period as a repeated transmission period.

14. A device for continuously transmitting a new packet, characterized by comprising:

a second repetition period determining module, configured to determine a second repetition period according to the first repetition period; the number of subframes transmitted in the second repetition period is the number of subframes transmitted in the first repetition period, and the number of the newly transmitted packets a common multiple of the number of subframes transmitted during the generation period; a subframe transmitted during each generation period Ordered sequentially;

a sequence number determining module, configured to determine a sequence number of a subframe set as a blank subframe or an MBSFN subframe in the subframe transmitted in the second repetition period;

a reserved resource determining module, configured to select, from each subframe number of a generation period, a sequence number other than the sequence number determined by the sequence number determining module, to select a subframe corresponding to the sequence number as each generation period Reserved resources for transmitting new packets;

The new transport packet continuous transmission module is configured to continuously transmit the new transport packet according to the reserved resource.

15. A new packet transmission device, comprising:

a conflict determination module, configured to send a pause notification when determining that a subframe to be used for transmitting a new packet is set to blank subframe or MBSFN subframe during continuous transmission of the new packet;

a new transmission packet continuous transmission module, configured to stop sending the new transmission packet according to the suspension notification, and send a dynamic scheduling notification;

The dynamic scheduling module is configured to dynamically schedule the new delivery packet according to the dynamic scheduling notification.

16. A device for continuously receiving a new packet, which is characterized by comprising:

a reserved resource determining module, configured to determine, according to a set period of the reserved resource, a time at which the sending end sends a new packet after the reserved resource is activated;

The new packet continuous receiving module is configured to continuously receive the new packet according to the time determined by the reserved resource determining module.

17. A new packet receiving device, comprising:

a conflict determination module, configured to determine, in the continuous receiving process of the new transport packet, that the subframe that is currently used to receive the new transport packet is not set to blank subframe or MBSFN subframe;

The new packet continuous receiving module is configured to receive the new packet when the collision determining module determines that the subframe currently to be used to receive the new packet is not set to blank subframe or MBSFN subframe.

18. The new packet receiving apparatus of claim 17, further comprising a dynamic scheduling receiving module, wherein:

The conflict determining module is further configured to: during the continuous receiving process of the new transport packet, if it is determined that the current Sending a pause notification when a subframe for receiving a new packet is set to blank subframe or MBSFN subframe;

The dynamic scheduling receiving module is configured to stop receiving the new transport packet according to the pause notification, and change to receive the new transport packet according to the dynamic schedule.