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Method and device for reporting cache state and allocating resources

A technology for caching status and allocating resources, which is applied in network traffic/resource management, electrical components, wireless communication, etc., and can solve problems such as waste of resources, inability of base stations to accurately schedule terminal data, insufficient resource allocation, etc.

Active Publication Date: 2019-04-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method and device for reporting buffer status and allocating resources, which is used to solve the problem that the length of the Buffer Size field in the prior art cannot accurately represent the buffer status, so that the base station cannot accurately schedule terminal data, resulting in insufficient resource allocation or resource allocation. waste problem

Method used

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  • Method and device for reporting cache state and allocating resources
  • Method and device for reporting cache state and allocating resources
  • Method and device for reporting cache state and allocating resources

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0274] Embodiment 1: One BSR table, one logical channel group BSR report, 5bit BS size (1 in the first method for the above-mentioned case 2).

[0275] Terminal side:

[0276] Step 1: The terminal only needs to report the buffer status of one logical channel group, select the LCID of the short BSR to organize the MAC subheader; or the terminal can send the padding BSR after sending the uplink transmission according to the obtained uplink resources, but the remaining resources are only enough to send one logical channel. The BSR of the channel group, namely the truncated BSR, selects the LCID of the truncated BSR to organize the MAC subheader.

[0277] Select 1byte BSR MAC CE format (for example Figure 3A format), where the BS size is 5bit. According to the buffered data amount of the logical channel group, in the BSR table of 8bit BS size (for example, Table 1), select the first 31 indication sequence numbers index to fill in the BSR MAC CE. If the amount of buffered data ...

Embodiment 2

[0284] Embodiment 2: One BSR table, one logical channel group BSR report, the terminal chooses to use one of the 5-bit BS size and the 8-bit BS size (2 in the first method for the above-mentioned case 2).

[0285] Terminal side:

[0286] Step 1: When the terminal has only one logical channel group buffer status to be reported, the BS size to be used is 5bit or 8bit according to the buffered data volume of the terminal. One means, select 5bit BS size, otherwise select 8bit BS size; according to the selected BS size, determine the corresponding LCID to generate the MAC subheader, and the corresponding BSR MAC CE format, and generate the BSRMAC CE.

[0287] Step 2: The terminal sends the organized BSR MAC CE and its subheaders on the allocated uplink resources.

[0288] Step 3: The terminal sends the uplink buffer data according to the uplink resources allocated by the base station. If there are padding resources, it reports the padding BSR to reflect the latest BSR situation. ...

Embodiment 3

[0293] Embodiment 3: One BSR table, multiple logical channel groups are buffered and reported (corresponding to case 1).

[0294] Terminal side:

[0295] Step 1: When the terminal has multiple logical channel groups that need to be reported, the 8bit BS size is used; the corresponding LCID is determined to generate the MAC subheader and the corresponding BSR MAC CE format, and the BSR MAC CE is generated.

[0296] Step 2: The terminal sends the organized BSR MAC CE and its subheaders on the allocated uplink resources.

[0297] Step 3: The terminal sends the uplink buffer data according to the uplink resources allocated by the base station.

[0298] Base station side:

[0299] Step 1: The base station receives the uplink transmission from the terminal, determines the BSR reported by the terminal, and determines the 8bit BS size and its corresponding BSR MAC CE format according to the LCID in the MAC subheader.

[0300] Step 2: The base station allocates uplink resources to t...

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Abstract

The invention discloses a method and device for reporting a cache state and allocating resources, for solving the problem in the prior art of under-allocation of resources or resource waste caused bythe fact that the length of a Buffer Size domain cannot accurately represent the cache state quantity, and as a result, a base station cannot accurately schedule terminal data. According to embodiments of the invention, a terminal determines the used BSR MAC CE format according to the quantity of logic channel groups which need to report the cache state, generates a BSR MAC CE according to the determined BSR MAC CE format and the number of bits occupied by the cached serial number in the BSR MAC CE format, and reports the generated BSR MAC CE to a network device. By using the solution of the embodiments of the invention, different BSR MAC CE formats can be selected for different quantities of logic channel groups, so as to schedule the terminal data more accurately, thereby reducing the frequency of occurrence of under-allocation of resources or resource waste.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, to a method and device for reporting cache status and allocating resources. Background technique [0002] The LTE (Long Term Evolution, long term evolution) MAC (Medium Access Control, medium access control) PDU (Protocol Data Unit, protocol data unit) format is such as figure 1 shown. Among them, "R" represents a reserved bit; "F2" and "F" jointly indicate the length of the L field, if the length of the MAC SDU or MAC CE (ControlElement, control element) corresponding to the MAC subheader is greater than 32767bytes, F2=1 , otherwise F2=0; "E" is used to indicate whether the follow-up is a MAC subheader, if the follow-up is a MAC subheader, E=1, otherwise E=0; "LCID" is the logical channel group number, each bearer RB corresponds to The logical channel group has a logical channel group number LCID, and each MAC CE also corresponds to an LCID; "L" indica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W72/04
CPCH04W28/0278H04W72/52H04W72/21H04W72/23H04W28/02H04W72/04
Inventor 谌丽许芳丽刘佳敏
Owner DATANG MOBILE COMM EQUIP CO LTD