Doc.: IEEE 802.22-14/0019r1 Submission January 2014 Keat-Beng Toh, Hitachi Kokusai ElectricSlide 1 [Comment Resolution related to Multi- channel operation]

doc.: IEEE 802.22-14/0019r1

Submission

January 2014

Keat-Beng Toh, Hitachi Kokusai ElectricSlide 1

[Comment Resolution related to Multi-channel operation]

IEEE P802.22b Wireless RANs Date: 2014-1-22Authors:

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Name Company Address Phone email Keat Beng Toh Hitachi Kokusai

Electric Inc. 32, Miyuki-cho, Kodaira-shi, Tokyo, 187-8511, Japan

+81-42-322-3111 [email protected]

Keigo Hasegawa Hitachi Kokusai Electric Inc.

32, Miyuki-cho, Kodaira-shi, Tokyo, 187-8511, Japan


Masayuki Takekawa

Hitachi Kokusai Electric Inc.



Kei Yanagisawa Hitachi Kokusai Electric Inc.



Seishi Sasaki Hitachi Kokusai Electric Inc.



Masahiro Asano Hitachi Kokusai Electric Inc.



http://standards.ieee.org/guides/bylaws/sb-bylaws.pdf

mailto:[email protected]

mailto:[email protected]

doc.: IEEE 802.22-14/0019r1

Submission

January 2014


• This contribution presents the comment resolution related to Multi-channel operation for CID #7, #8, #9, #10, #11, #13, #14 and #37.

Abstract

doc.: IEEE 802.22-14/0019r1

Submission

January 2014


Comment Resolution related to CID #7

Proposed Remedy: Accepted Add extra description text in the sub-clause 7.24.1 to explain thedifferences functionality between SM and CAM.

ID Comment Suggested Remedy

1 Current D1 document cover only single channel Frame structure, need additional frame structure definition add more frame structure definition for multi-channel operation7 All functions of channel allocation manager (CAM) can be realized by spectrum manager (SM) defined inIEEE 802.22 Std. 2011.

1. Let SM be used in MR-BS instead of CAM; 2. CAM can be used in R-CPE but logical interfaces need to be redefined.

doc.: IEEE 802.22-14/0019r1

Submission

January 2014


• Add the following sentence as shown in the proposed text– (original text) The channel allocation manager (CAM) shown in Figure AP1 is

responsible for the basic multi-channel operations such as add new operating channel operation which is described in 7.24.1.1, stop operating channel which is described in 7.24.1.3 and switch operating channel which is described in 7.24.1.4.

– (proposed text) The channel allocation manager (CAM) shown in Figure AP1 is responsible for the basic multi-channel operations such as add new operating channel operation which is described in 7.24.1.1, stop operating channel which is described in 7.24.1.3 and switch operating channel which is described in 7.24.1.4. All of the basic functions described in the CAM are necessary to support the multi-channel operation in the IEEE Std. 802.22b which is different from the single channel operation supported by the IEEE Std. 802.22-2011.

doc.: IEEE 802.22-14/0019r1

Submission

January 2014



Proposed Remedy: AcceptedModify the description text in the sub-clause 7.24.1 to explain that the CHU is not limited to a specific channel.


8 Definition of CHU needs to be given more accurately and should not be limited to a specific channel. A channel transceiver unit (CHU) is defined as a transceiver unit that operates in a frequency channel of TV bands andsatisfies MAC and PHY specifications of IEEE 802.22b.

doc.: IEEE 802.22-14/0019r1

Submission

January 2014


• Modify the description text in the sub-clause 7.24.1 as shown in the proposed text– (original text) A channel transceiver unit (CHU) is defined as a transceiver unit for a

specific channel operation which is consists of a MAC and a PHY.

– (proposed text) A channel transceiver unit (CHU) is defined as a transceiver unit that operates in a specific channel within its operational frequency range which consists of a MAC and a PHY.

doc.: IEEE 802.22-14/0019r1

Submission

January 2014




8 Definition of CHU needs to be given more accurately and should not be limited to a specific channel. A channel transceiver unit (CHU) is defined as a transceiver unit that operates in a frequency channel of TV bands and9 In multi-channel operation,the number of channels selected for use should not be limited to all BS-CHU In Figure AQ1, add condition before "unused BS-CHU?" to indicate that only when more channels are desired to be added,the operation of checking unused BS-CHU will be continued. Related text: If BS-CAM desires to add a new operatingchannel, "the BS-CAM......shall proceed to the select specific BS-CHU procedure."

Proposed Remedy: Accepted

Add extra description text in the sub-clause 7.24.1.1.10 to explain the number of channels selected for use is not limited to all BS-CHU.

doc.: IEEE 802.22-14/0019r1

Submission

January 2014


• Add the following sentence in the sub-clause 7.24.1.1.10 as shown in the proposed text– In multi-channel operation, the number of available operating channels is fixed

during the BS initialization procedure. Therefore, the number of channel selected for use in not limited by the number of BS-CHU.

Please refer to the document 22-13-0163-00-000b for detailinformation for acquiring the available operating channels.

doc.: IEEE 802.22-14/0019r1

Submission

January 2014




10 The BS-CAM needs to confirm non-blank status of backup channel (candidate channel) Add step of confirming channel availability.

Proposed Remedy: RejectedThe BS-CAM only consider the available operating channels during BS initialization procedure for multi-channel operation.


doc.: IEEE 802.22-14/0019r1

Submission

January 2014




11 In multi-channel operation,the number of channels selected for use should not be limited to all CPE-CHU In Figure AQ1, add condition before "unused CPE-CHU?" to indicate that only when more channels are desired to beadded, the operation of checking unused CPE-CHU will be continued. Related text: If CPE-CAM desires to add a newoperating channel, "the CPE-CAM......shall proceed to the select specific CPE-CHU procedure."

Proposed Remedy: Accepted

Add extra description text in the sub-clause 7.24.1.1.21 to explain the number of channels selected for use is not limited to all CPE-CHU.

doc.: IEEE 802.22-14/0019r1

Submission

January 2014


• Add the following sentence in the sub-clause 7.24.1.1.21 as shown in the proposed text– In multi-channel operation, the number of available operating channels is fixed

during the BS initialization procedure. Therefore, the number of channel selected for use in not limited by the number of CPE-CHU.


doc.: IEEE 802.22-14/0019r1

Submission

January 2014



Proposed Remedy: AcceptedAs described in the sub-clause 7.24.1.1.1, “The BS-CAM shall select the BS-CHU which is in the state of unused or unassigned currently ...”. This description explained the same information asshown in the suggested remedy.


13 The BS-CHU should not be specified. delete "specific" and change to BS-CAM selects an available/unused BS-CHU in both text and in Figure AQ1

doc.: IEEE 802.22-14/0019r1

Submission

January 2014



Proposed Remedy: AcceptedAs described in the sub-clause 7.24.1.1.11, “The CPE-CAM shall select the CPE-CHU which is in the state of unused or unassigned ”.This description explained the same information as shown in the suggested remedy.


14 The CPE-CHU should not be specified. delete "specific" and change to CPE-CAM selects an available/unused CPE-CHU in both text and in Figure AQ1

doc.: IEEE 802.22-14/0019r1

Submission

January 2014



Proposed Remedy: AcceptedModify the description text in the sub-clause 7.24.1.4.9 by referring to the suggested remedy.


37 1. "The BS-CHU shall…which means that…that is..." Too long and complex sentence. 2. "…necessity oftermination of operation on current channel…, … is not receive from neither one ..."

1. Break the sentence into two sentences. 2. "…necessity of terminating operation in current channel…, … is receivedfrom neither one ..."

doc.: IEEE 802.22-14/0019r1

Submission

January 2014


• Modify the description text in the sub-clause 7.24.1.4.9 as shown in the proposed text– (original text) The BS-CHU shall switch to a new operating channel when the

channel switch timer is expired which means that it has reached the frame number that is set during the start channel switch timer procedure. ... Since channel switch is performed due to the necessity of termination of operation on current channel in most of the cases, a channel switch is enforced even if the channel switch acknowledgement is not receive from neither one of the CPEs.

– (proposed text) The BS-CHU shall switch to a new operating channel when the channel switch timer is expired. The channel switch timer is expired when it has reached the frame number that is set during the start channel switch timer procedure. ... Since channel switch is performed due to the necessity of terminating current operating channel in most of the cases, a channel switch is enforced even though the channel switch acknowledgement is not received from neither one of the CPEs.

Documents

Doc.: IEEE 802.22-14/0019r1 Submission January 2014 Keat-Beng Toh, Hitachi Kokusai ElectricSlide 1 [Comment Resolution related to Multi- channel operation]